Firestore forceIndex support; race conditions in ABT and Perf fixed

The Firebase Apple SDK (12.14.0) is now available. For more details, see the Firebase Apple SDK release notes.

To install this SDK, see Add Firebase to your project.

What's Changed

• [ABT] Fix race crash by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/16148
• fix(firestore): add noexcept specifiers to move, swap, hash operations by @dlarocque in https://github.com/firebase/firebase-ios-sdk/pull/16117
• [Crashlytics] Refactor non-fatal error logging to use FIRCLSNonFatalError model by @mghaznav in https://github.com/firebase/firebase-ios-sdk/pull/16139
• feat(firestore): Add support for forceIndex option by @dlarocque in https://github.com/firebase/firebase-ios-sdk/pull/16084
• [Perf] Fix a race condition by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/16153
• fix(spm): trailing comma in Package.swift for FirebaseAILogic target by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/16162
• [AI] Use respond(to:options:) for String generation by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/16165
• [Perf] Add networkInstrumentationEnabled opt-out flag (#8277) by @JesusRojass in https://github.com/firebase/firebase-ios-sdk/pull/16168
• [Perf] Cache swizzleClassDenylist in lazy ivar by @JesusRojass in https://github.com/firebase/firebase-ios-sdk/pull/16174
• [AI] Remove Gemma from header comment on GeminiModel by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/16177
• chore: fix a bunch of typos in the swift files by @MojtabaHs in https://github.com/firebase/firebase-ios-sdk/pull/16179
• fix(docs): fix maps grounding phrasing in https://github.com/firebase/firebase-ios-sdk/pull/16180
• [AI] Handle GenerateContentResponse with only usageMetadata by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/16171
• [App Check] Add AppAttestProviderFactory by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/16182
• feat(cocoapods): Add CocoaPods deprecation warnings to Podspec, README, and CHANGELOG by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/16172

Full Changelog: https://github.com/firebase/firebase-ios-sdk/compare/12.13.0...12.14.0