reinstate Node 8 tests but always build on Node 14

.github/workflows/test.yml

@@ -5,12 +5,15 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        node-version: [10, 12, 14]
+        node-version: [8, 10, 12, 14]
         os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
     - uses: actions/checkout@v1
     - uses: actions/setup-node@v1
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 14
     - run: npm install
-    - run: npm test
+    - uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: node test.js