Bump docker/build-push-action from 6.10.0 to 6.15.0 (#48)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.10.0 to 6.15.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.10.0...v6.15.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: George Zubrienko <zubrienkog@gmail.com>

Author: dependabot[bot]

.github/workflows/build-image.yaml

@@ -55,7 +55,7 @@ jobs:
           platforms: linux/arm64,linux/amd64
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@v6.10.0
+        uses: docker/build-push-action@v6.15.0
         with:
           build-args: |
             APPVERSION=${{ steps.version.outputs.version }}