feat(github-action)!: Update docker/build-push-action action to v6

Author: renovate[bot]

.github/workflows/publish.yaml

@@ -42,7 +42,7 @@ jobs:
             type=ref, event=pr
 
       - name: Build and push to ghcr
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
+        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}