Add a yarn.lock file and use for node.js setup

.github/workflows/github_pages_deploy.yml

@@ -19,6 +19,7 @@ jobs:
           with:
             node-version: 16.x
             cache: yarn
+            cache-dependency-path: documentation/yarn.lock
         - name: Install dependencies
           working-directory: documentation
           run: yarn install --frozen-lockfile --non-interactive