chore(deps): bump docker/build-push-action in the github-actions group

Bumps the github-actions group with 1 update: [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `docker/build-push-action` from 5 to 6
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5...v6)

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

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

.github/workflows/reusable-release.yaml

@@ -108,7 +108,7 @@ jobs:
       # because GoReleaser Free doesn't support pushing images with the `--snapshot` flag.
       - name: Build and push
         if: ${{ inputs.goreleaser_config == 'goreleaser-canary.yml' }}
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64, linux/arm64
           file: ./Dockerfile.canary # path to Dockerfile