Bump docker/build-push-action from 5 to 6 in the batch group (#81)

Bumps the batch 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: batch
...

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

.github/workflows/docker.yml

@@ -44,7 +44,7 @@ jobs:
           images: ghcr.io/${{ github.repository }}_${{ matrix.name }}
 
       - name: Build and cache base Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./Docker
           file: ./Docker/${{ matrix.name }}_dockerfile
@@ -57,7 +57,7 @@ jobs:
           cache-to: type=gha,mode=max,scope=${{ github.ref_name }}-${{ matrix.name }}
 
       - name: Build and push final Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: ./Docker
           file: ./Docker/${{ matrix.name }}_dockerfile