Add gitignore for GoogleService-Info.plist (#7178)
Add gitignore for GoogleService-Info.plist (#7178)

* Add secret to performance integration tests.

* Updat pull request path to trigger the GHA.

* Remove pull request condition.

* Remove dev test App GoogleService-Info.plist

* Create README.md

* Fix style.

* Add gitignore for GoogleService-Info.plist.

* Move .gitignore to root directory.
firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk