Unshallow only if necessary

Signed-off-by: Alfredo Gutierrez <[email protected]>

Author: AlfredoG87

.github/workflows/spotless-check.yml

@@ -33,6 +33,14 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Expand Shallow Clone for Spotless
+        run: |
+          if [ -f .git/shallow ]; then
+            git fetch --unshallow --no-recurse-submodules
+          else
+            echo "Repository is not shallow, no need to unshallow."
+          fi
+
       - name: Set up JDK 21
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with: