devops: run install tests on common node versions (microsoft#2059)

.github/workflows/tests.yml

@@ -270,13 +270,17 @@ jobs:
 
   test-package-installations:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node_version:
+        - "^10.17.0" # pre 10.17, --unhandled-rejections=strict was not an option (https://github.com/nodejs/node/pull/26599) which we need in our tests
+        - "^12.0.0"
+        - "^14.1.0"  # pre 14.1, zip extraction was broken (https://github.com/microsoft/playwright/issues/1988)
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v1
       with:
-        # New node.js version supports `--unhandled-rejections=strict` flag that
-        # we use in `installation-tests.sh`.
-        node-version: 12
+        node-version: ${{ matrix.node_version }}
     - uses: microsoft/playwright-github-action@v1
     - run: npm ci
     - run: bash test/installation-tests/installation-tests.sh