build(ci): disable macos

Author: kwonoj

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         node: [ '12', '13', '14', '15', '16' ]
-        os: [ macos-latest, ubuntu-latest, windows-latest ]
+        os: [ ubuntu-latest, windows-latest ]
 
     name: ${{ matrix.os }} / Node ${{ matrix.node }}