Try forcing Swift 6 mode on macOS 14 / Xcode 16.2

Author: andrewheard

.github/workflows/firebaseai.yml

@@ -78,7 +78,9 @@ jobs:
     with:
       product: ${{  matrix.product }}
       supports_swift6: true
-      setup_command: scripts/update_vertexai_responses.sh
+      setup_command: |
+        scripts/update_vertexai_responses.sh; \
+        sed -i "" "s/s.swift_version[[:space:]]*=[[:space:]]*'5.9'/s.swift_version = '6.0'/" ${{  matrix.product }}.podspec
 
   quickstart:
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'

FirebaseAI/Tests/Unit/Types/Generable/GenerableTests.swift

@@ -15,7 +15,6 @@
 @testable import FirebaseAILogic
 import Testing
 
-@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct GenerableTests {
   @Test
   func initializeGenerableTypeFromModelOutput() throws {