Add Reuse in workflow Java Gradle CI

Add a reusable-workflow job in java gradle ci to execute reuse-compliance as part of the main CI pipeline

Signed-off-by: Mahmut Tumkaya <mahmut.tumkaya@alliander.com>

Author: Mahmuttumkaya

.github/workflows/java-gradle-ci.yml

@@ -76,3 +76,7 @@ jobs:
         shell: bash
         run: |
           echo "name=${GITHUB_REPOSITORY#*/}" >> "$GITHUB_OUTPUT"
+
+  reuse-compliance:
+    name: REUSE Compliance
+    uses: ./.github/workflows/reuse-compliance.yml