Attempt to fix the checkout in container

Author: hongquan

.github/workflows/install.yml

@@ -33,8 +33,6 @@ jobs:
       image: ${{ matrix.container }}
     name: ${{ matrix.container }}
     steps:
-      - name: Repository checkout
-        uses: actions/checkout@v4
 
       - name: Install dependencies
         shell: bash
@@ -76,6 +74,10 @@ jobs:
           python3 -m pip install --break-system-packages build
           wget -qO- https://astral.sh/uv/install.sh | sh
 
+      # Checkout repo after installing Git, or the GH Action delete our .git folder.
+      - name: Repository checkout
+        uses: actions/checkout@v4
+
       - name: Install & test
         shell: bash
         run: |