[gh-actions](deps): Bump docker/build-push-action from 6.12.0 to 6.13…

….0 (#1045)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.12.0 to 6.13.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@67a2d40...ca877d9)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/custom_docker_builds.yml

@@ -68,7 +68,7 @@ jobs:
 
       - name: Build ${{ (github.ref == 'refs/heads/main' && 'and push ') || '' }}${{ matrix.docker-image }}
         id: docker-build-push
-        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
+        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6.13.0
         with:
           context: ${{ matrix.docker-image }}
           file: ${{ matrix.docker-image }}/Dockerfile