fix: github action test against node 16.x

Author: bitkidd

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 17.x
+          - 16.x
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}