remove version of sling-maven-plugin (managed in parent)
diff --git a/pom.xml b/pom.xml
index 667d79f..de51b86 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,8 +52,7 @@
         <plugins>
             <plugin>
                 <groupId>org.apache.sling</groupId>
-                <artifactId>maven-sling-plugin</artifactId>
-                <version>2.3.8</version>
+                <artifactId>sling-maven-plugin</artifactId>
                 <executions>
                     <execution>
                         <id>generate-adapter-metadata</id>