fix: minor change

Author: BKristenssonAlfsson

Diff for: .github/workflows/nodejs.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         node-version: [12.x]
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
 
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1