fix: write vfs storage config to system path for root podman

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -35,8 +35,7 @@ jobs:
     steps:
       - run: |
           dnf install -y git
-          mkdir -p ~/.config/containers
-          printf '[storage]\ndriver = "vfs"\n' > ~/.config/containers/storage.conf
+          printf '[storage]\ndriver = "vfs"\n' > /etc/containers/storage.conf
       - run: |
           git clone --depth 1 \
             -c "http.extraHeader=Authorization: token ${{ github.token }}" \