build(test.yml): set node-version to 16

Author: gr2m

.github/workflows/test.yml

@@ -1,15 +1,12 @@
 name: Test
-
-on:
+"on":
   push:
     branches:
       - master
-
   pull_request:
     types:
       - opened
       - synchronize
-
 jobs:
   test_matrix:
     strategy:
@@ -18,11 +15,10 @@ jobs:
           - 10
           - 12
           - 14
-        # TODO: fix problem with windows, then add "windows-latest" to list of os
-        os: [ubuntu-latest, macos-latest]
-
+        os:
+          - ubuntu-latest
+          - macos-latest
     runs-on: ${{ matrix.os }}
-
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}
@@ -31,14 +27,13 @@ jobs:
           node-version: ${{ matrix.node-version }}
       - uses: bahmutov/npm-install@v1
       - run: npm run test:ci
-
-  # separate job to set as required in branch protection,
-  # as the build names above change each time Node versions change
   test:
     runs-on: ubuntu-latest
     needs: test_matrix
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
+        with:
+          node-version: 16
       - uses: bahmutov/npm-install@v1
       - run: npm run lint