Update test Github Action.

Author: jjhbw

.github/workflows/test.yml

@@ -9,9 +9,9 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v1
         with:
-          node-version: "12.x"
+          node-version: "16.x"
       - run: yarn install --frozen-lockfile
       - run: yarn test