[ci][code-gen.yaml] Fix yarn version

.github/workflows/code-gen.yaml

@@ -29,6 +29,9 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 'lts/*'
+      - name: Reconfigure git to use HTTP authentication
+        run: |
+          git config --global url."https://${{ secrets.GH_TOKEN }}@github.com/".insteadOf ssh://[email protected]/
       - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'