cicd script change to use node 16

Author: rishabhpoddar

.circleci/config.yml

@@ -31,10 +31,11 @@ jobs:
           name: Setup iOS env
           command: cd v2/src/plugins/codeTypeChecking/iosEnv/ && pod install
           no_output_timeout: 30m
+      - run: nvm install 16 -y
       - run: 
           no_output_timeout: 30m
           name: Run build for iOS docs
-          command: cd v2 && npm run build:ios
+          command: nvm use 16 && cd v2 && npm run build:ios
       - slack/status
   code-checking:
     environment: