build: fix macos runner type in GitHub Action

Backport-PR-URL: #32608
PR-URL: #31327
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>
Reviewed-By: Anto Aravinth <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

.github/workflows/CI.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Build
         run: ./vcbuild.bat
   build-macOS:
-    runs-on: macOS-latest
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js 13