chore(deps): update docker/build-push-action action to v6.15.0 (#396)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build_containers.yml

@@ -50,7 +50,7 @@ jobs:
         with:
           images: ghcr.io/${{ env.IMAGE_REPOSITORY }}
       - name: Build Docker Release
-        uses: "docker/build-push-action@v6.14.0"
+        uses: "docker/build-push-action@v6.15.0"
         with:
           provenance: false
           file: "./Sample-Server/Dockerfile"