feat: Bump Firebase iOS SDK to 9.5.0

[Lyokone]

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[Lyokone]

For Flutter 3.3 compatibility

[Salakar]

@russellwheatley do you remember if there was a somewhere else it needed updating also, was it in the docs? 🤔

[russellwheatley]

We previously had to update the docs but now that has been removed from the current documentation so this is fine 👍

[nilsreichardt]

@russellwheatley The iOS SDK version is mentioned in the Firestore docs: https://firebase.google.com/docs/firestore/quickstart#set_up_your_development_environment

[russellwheatley]

@nilsreichardt Thanks for letting me know! It's not in the FlutterFire repo I'm afraid.

@kevinthecheung Do you mind updating this part of the documentation so it reads like the below, please:

  pod 'FirebaseFirestore', :git => 'https://github.com/invertase/firestore-ios-sdk-frameworks.git', :tag => '9.5.0'

Link: https://firebase.google.com/docs/firestore/quickstart#dart

[nilsreichardt]

Yes, unfortunately, the Cloud Firestore docs are not open source :(