Bump docker/build-push-action from 5.3.0 to 6.2.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.3.0 to 6.2.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5.3.0...v6.2.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/code.yaml

@@ -104,7 +104,7 @@ jobs:
         uses: docker/setup-buildx-action@v3.3.0
 
       - name: Build Image
-        uses: docker/build-push-action@v5.3.0
+        uses: docker/build-push-action@v6.2.0
         with:
           context: "{{defaultContext}}:backstage"
           target: ${{ matrix.target }}