fix workflow

Author: 0marperez

.github/workflows/minor-version-bump.yml

@@ -4,9 +4,15 @@ on:
 
 jobs:
   minor-version-bump-check:
-    if: github.head_ref == '^v\d+\.\d+.*$' # Only runs on branches starting with vX.X (e.g., v1.2, v1.2.3, v1.2-main)
     permissions: {}
     runs-on: ubuntu-latest
     steps:
+      - name: Check branch name
+        run: |
+          # Only continue on branches starting with vX.X (e.g. v1.2, v1.2.3, v1.2-main)
+          if [[ ! "$GITHUB_HEAD_REF" =~ ^v\.[0-9]+\.[0-9]+.*$ ]]; then
+            exit 0
+          fi
+
       - name: Minor version bump check
         uses: awslabs/aws-kotlin-repo-tools/.github/actions/minor-version-bump@main