SLING-9294 Update Pax Exam to 4.13.3

* Update Pax Exam
* Remove unused OSGi Compendium dependency
diff --git a/pom.xml b/pom.xml
index e2826b1..31e07c5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,6 +34,10 @@
   <name>Apache Sling - Karaf Integration Tests</name>
   <description>Integration Tests for Apache Sling Karaf</description>
 
+  <properties>
+    <org.ops4j.pax.exam.version>4.13.3</org.ops4j.pax.exam.version>
+  </properties>
+
   <scm>
     <connection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-karaf-integration-tests.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-karaf-integration-tests.git</developerConnection>
@@ -62,11 +66,6 @@
       <artifactId>osgi.core</artifactId>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>org.osgi</groupId>
-      <artifactId>osgi.cmpn</artifactId>
-      <scope>provided</scope>
-    </dependency>
     <!-- Apache Karaf -->
     <dependency>
       <groupId>org.apache.karaf.features</groupId>
@@ -131,17 +130,17 @@
     <dependency>
       <groupId>org.ops4j.pax.exam</groupId>
       <artifactId>pax-exam</artifactId>
-      <version>4.13.2</version>
+      <version>${org.ops4j.pax.exam.version}</version>
     </dependency>
     <dependency>
       <groupId>org.ops4j.pax.exam</groupId>
       <artifactId>pax-exam-container-karaf</artifactId>
-      <version>4.13.2</version>
+      <version>${org.ops4j.pax.exam.version}</version>
     </dependency>
     <dependency>
       <groupId>org.ops4j.pax.exam</groupId>
       <artifactId>pax-exam-junit4</artifactId>
-      <version>4.13.2</version>
+      <version>${org.ops4j.pax.exam.version}</version>
       <scope>test</scope>
     </dependency>
     <dependency>