chore(deps): Bump docker/build-push-action from 5.3.0 to 6.15.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.3.0 to 6.15.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5.3.0...v6.15.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/pipeline.yaml

@@ -217,7 +217,7 @@ jobs:
 
       - name: Build/push container
         id: build
-        uses: docker/build-push-action@v5.3.0
+        uses: docker/build-push-action@v6.15.0
         with:
           build-args: |
             VERSION=${{ needs.init.outputs.VERSION_FULL }}