demo(revert): configurable version reverted

this doesn't work with the maven release plugin
diff --git a/tobago-example/pom.xml b/tobago-example/pom.xml
index eac2ed4..af32f07 100644
--- a/tobago-example/pom.xml
+++ b/tobago-example/pom.xml
@@ -29,7 +29,6 @@
   <properties>
     <app.packaging>war</app.packaging>
     <quarkus.version>1.13.4.Final</quarkus.version>
-    <tobago.version>${project.version}</tobago.version>
   </properties>
 
   <modules>
@@ -95,32 +94,32 @@
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-theme-charlotteville</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-theme-roxborough</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-theme-scarborough</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-theme-speyside</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-theme-standard</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-core</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>jakarta.enterprise</groupId>
@@ -148,7 +147,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-dev</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
       </dependencies>
     </profile>
@@ -222,7 +221,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-mojarra</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
         <!-- from https://eclipse-ee4j.github.io/mojarra/ [BEGIN] -->
         <dependency>
@@ -349,7 +348,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-dev</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
         <dependency>
           <groupId>ch.qos.logback</groupId>
@@ -393,7 +392,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-owb</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
           <scope>runtime</scope>
         </dependency>
         <dependency>
@@ -453,7 +452,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-owb</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
           <scope>runtime</scope>
         </dependency>
         <dependency>
@@ -471,7 +470,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-dev</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
         <dependency> <!-- add JAXB to run the demo with Java 11 and higher -->
           <groupId>javax.xml.bind</groupId>
@@ -504,7 +503,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-dev</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
       </dependencies>
       <build>
diff --git a/tobago-example/tobago-example-assembly/pom.xml b/tobago-example/tobago-example-assembly/pom.xml
index 26bd684..46d5276 100644
--- a/tobago-example/tobago-example-assembly/pom.xml
+++ b/tobago-example/tobago-example-assembly/pom.xml
@@ -52,13 +52,13 @@
                     <artifactItem>
                       <groupId>${project.groupId}</groupId>
                       <artifactId>tobago-example-demo</artifactId>
-                      <version>${tobago.version}</version>
+                      <version>${project.version}</version>
                       <type>war</type>
                     </artifactItem>
                     <artifactItem>
                       <groupId>${project.groupId}</groupId>
                       <artifactId>tobago-example-blank</artifactId>
-                      <version>${tobago.version}</version>
+                      <version>${project.version}</version>
                       <type>war</type>
                     </artifactItem>
                   </artifactItems>
@@ -80,7 +80,7 @@
                   <descriptors>
                     <descriptor>src/main/assembly/dep.xml</descriptor>
                   </descriptors>
-                  <finalName>myfaces-tobago-${tobago.version}</finalName>
+                  <finalName>myfaces-tobago-${project.version}</finalName>
                   <outputDirectory>target/assembly/out</outputDirectory>
                   <workDirectory>target/assembly/work</workDirectory>
                   <tarLongFileMode>gnu</tarLongFileMode>
diff --git a/tobago-example/tobago-example-demo/pom.xml b/tobago-example/tobago-example-demo/pom.xml
index cb45468..5da94ab 100644
--- a/tobago-example/tobago-example-demo/pom.xml
+++ b/tobago-example/tobago-example-demo/pom.xml
@@ -217,14 +217,14 @@
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-core</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.myfaces.tobago</groupId>
       <artifactId>tobago-tool-test</artifactId>
-      <version>${tobago.version}</version>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>commons-io</groupId>
@@ -282,7 +282,7 @@
                     <artifactItem>
                       <groupId>org.apache.myfaces.tobago</groupId>
                       <artifactId>tobago-theme-standard</artifactId>
-                      <version>${tobago.version}</version>
+                      <version>${project.version}</version>
                     </artifactItem>
                   </artifactItems>
                 </configuration>
@@ -347,7 +347,7 @@
               <dependency>
                 <groupId>org.apache.myfaces.tobago</groupId>
                 <artifactId>tobago-core</artifactId>
-                <version>${tobago.version}</version>
+                <version>${project.version}</version>
               </dependency>
             </dependencies>
           </plugin>
@@ -412,7 +412,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-owb</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
           <scope>runtime</scope>
         </dependency>
         <dependency>
@@ -430,7 +430,7 @@
         <dependency>
           <groupId>org.apache.myfaces.tobago</groupId>
           <artifactId>tobago-config-dev</artifactId>
-          <version>${tobago.version}</version>
+          <version>${project.version}</version>
         </dependency>
         <dependency> <!-- add JAXB to run the demo with Java 11 and higher -->
           <groupId>javax.xml.bind</groupId>