chore(deps): update actions/setup-node action to v2.4.1

Author: renovate-bot

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Run tests with ${{ matrix.node-version }}
-        uses: actions/setup-node@v2.1.5
+        uses: actions/setup-node@v2.4.1
         with:
           node-version: ${{ matrix.node-version }}
       - name: yarn install, and test