chore(deps): bump docker/build-push-action from 6.15.0 to 6.16.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.15.0 to 6.16.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.15.0...v6.16.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 6.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/nightly_build_docker.yml

@@ -43,7 +43,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build
-        uses: docker/build-push-action@v6.15.0
+        uses: docker/build-push-action@v6.16.0
         with:
           push: false
           load: true

.github/workflows/release_build_docker.yml

@@ -58,7 +58,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build
-        uses: docker/build-push-action@v6.15.0
+        uses: docker/build-push-action@v6.16.0
         with:
           push: false
           load: true