chore: Update Node.js version in GitHub Actions workflows

Update Node.js version from 14 to 16 in ci.yml and nightly.yml

Author: xcodebuild

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
         - name: Install Node.js, NPM and Yarn
           uses: actions/setup-node@v1
           with:
-            node-version: 14
+            node-version: 16
 
         - name: Upgrade whistle
           run: |

.github/workflows/nightly.yml

@@ -20,7 +20,7 @@ jobs:
         - name: Install Node.js, NPM and Yarn
           uses: actions/setup-node@v1
           with:
-            node-version: 14
+            node-version: 16
 
         - name: Upgrade whistle
           run: |