Update Nodejs version to 14.16.0 (#27)

Related with jhipster/generator-jhipster#14304

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
          uses: actions/checkout@v2
       -  uses: actions/setup-node@v2.1.4
          with:
-           node-version: 14.15.4
+           node-version: 14.16.0
       -  name: Install ajv-cli first
          run: npm install -g ajv-cli markdown-table-cli
       -  name: Execute script