[gradle-module-metadata-maven-plugin] update to version 1.0 (#4998)

Signed-off-by: Jendrik Johannes <[email protected]>

Author: jjohannes

pom.xml

@@ -289,7 +289,7 @@
       </plugin>
 
       <plugin>
-        <groupId>de.jjohannes</groupId>
+        <groupId>org.gradlex</groupId>
         <artifactId>gradle-module-metadata-maven-plugin</artifactId>
       </plugin>