CI build extended to NodeJS 14

Author: tsmx

.github/workflows/git-build.yml

@@ -8,11 +8,15 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x]
+
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v1
       with:
-        node-version: '12.18.3'
+        node-version: ${{ matrix.node-version }}
     - run: npm ci
     - run: npm run test
     - run: npm run test-coverage