Revert "chore: update macos ci"

This reverts commit d963c85.

.github/workflows/macos.yaml

@@ -50,11 +50,10 @@ jobs:
 
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
         with:
           repository: ${{ github.event.inputs.repo }}
           ref: ${{ github.event.inputs.branch }}
-          fetch-depth: 1
 
       - name: Install flutter
         uses: subosito/flutter-action@v2