[build] Set Node versions to package.json engines

Author: nulltoken

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        node-version: [^10, ^12]
+        node-version: [^10.13, ^12.13]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2