chore(deps): update actions/checkout action to v6

Author: clb-robot

.github/workflows/container.yml

@@ -23,7 +23,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3