Re-enable gh-pages site publishing on 2.x

Author: bitwiseman

.github/workflows/publish_release_branch.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Maven Install and Site with Code Coverage
         env:
           MAVEN_OPTS: ${{ env.JAVA_11_PLUS_MAVEN_OPTS }}
-        run: mvn -B clean install -D enable-ci --file pom.xml "-Dsurefire.argLine=--add-opens java.base/java.net=ALL-UNNAMED"
+        run: mvn -B clean install site -D enable-ci --file pom.xml "-Dsurefire.argLine=--add-opens java.base/java.net=ALL-UNNAMED"
 
       - uses: actions/upload-artifact@v4
         with: