chore(deps): update docker/build-push-action action to v6

Author: descope[bot]

.github/workflows/ci.yml

@@ -145,7 +145,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6.10.0
         with:
           platforms: linux/amd64
           context: .