Updated test workflow to use node 10.

Author: Eugene Manuilov

.github/workflows/nodejs.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: '14.x'
+          node-version: '10.x'
       - name: Install dependencies and build typeorm-uml
         run: |
           npm ci --ignore-scripts