Update release workflow to only modify parent pom.xml

Child modules inherit dotcms-core.version from the parent, so updating
every pom.xml is unnecessary.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

Author: wezell

.github/workflows/release-target.yml

@@ -38,12 +38,9 @@ jobs:
           fi
           git checkout -b ${release_branch}
           
-          for file in $(find . -name pom.xml)
-          do
-            echo "Replacing version for ${file}"
-            python3 ${{ github.workspace }}/update_osgi_plugins.py ${file} ${release_version}
-            cat ${file} | grep "${release_version}"
-          done
+          echo "Replacing version in parent pom.xml"
+          python3 ${{ github.workspace }}/update_osgi_plugins.py ./pom.xml ${release_version}
+          grep "${release_version}" ./pom.xml
           
           git status
           git commit -a -m "Updating dotcms version to ${release_version}"