Improve cleanup script for ios (facebook#51046)

Summary:
Pull Request resolved: facebook#51046

This small change improves the cleanup script for ios, which is now not deleting the workspace and that it might be keeping an outdated version of the codegen for OSS.

## Changelog:
[Internal] - Improve yarn clean-ios script

Reviewed By: cortinico

Differential Revision: D73988442

fbshipit-source-id: 6de5d6ab08812ba7fdb19b0cc955a38840d82f89

Author: cipolleschi

packages/rn-tester/package.json

@@ -19,7 +19,7 @@
     "install-android-hermes": "../../gradlew :packages:rn-tester:android:app:installHermesDebug",
     "clean-android": "rm -rf android/app/build",
     "prepare-ios": "node ./cli.js bootstrap ios",
-    "clean-ios": "rm -rf build/generated/ios Pods Podfile.lock",
+    "clean-ios": "rm -rf build/generated/ios Pods Podfile.lock RNTesterPods.xcworkspace/ ../react-native-codegen/lib/",
     "e2e-build-android": "../../gradlew :packages:rn-tester:android:app:installHermesRelease -PreactNativeArchitectures=arm64-v8a",
     "e2e-build-ios": "./scripts/maestro-build-ios.sh",
     "e2e-test-android": "maestro test .maestro/ -e APP_ID=com.facebook.react.uiapp",