add cleanup step (#50)

Author: lucadruda

.github/workflows/release.yml

@@ -148,6 +148,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 #v3
       - name: Build and push service image
+        id: build_and_push
         if: steps.hub_image_exists.outputs.exists == 'false'
         uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
         with:
@@ -167,4 +168,11 @@ jobs:
           provenance: mode=max
           sbom: true
           platforms: linux/amd64,linux/arm64
+
+      - name: Delete git tag created by this workflow
+        if: failure() && steps.bump_version.outputs.new_tag != ''
+        shell: bash
+        run: |
+          git push --delete origin ${{ steps.bump_version.outputs.new_tag }}
+