fix: Restore Xcode 16 testing for AI QS (#1828)

* fix: Restore Xcode 16 testing for AI QS

* bump CK dep

* fix: add backwards compatible API for Xcode 16

* style

* address warnings

* style

* style

* Style

* Revert "Style"

This reverts commit 05fb805.

* try again

Author: ncooke3

.github/workflows/firebaseai.yml

@@ -36,6 +36,11 @@ jobs:
             platform: iOS
             device: iPhone 17 Pro
             ios_version: "26.1"
+          - os: macos-15
+            xcode: "16.4"
+            platform: iOS
+            device: iPhone 16
+            ios_version: "18.4"
     runs-on: ${{ matrix.os }}
     env:
       SETUP: firebaseai

firebaseai/FirebaseAIExample.xcodeproj/project.pbxproj

@@ -366,7 +366,7 @@
 			repositoryURL = "https://github.com/peterfriese/ConversationKit";
 			requirement = {
 				kind = exactVersion;
-				version = 0.0.3;
+				version = 0.0.4;
 			};
 		};
 		88779D912EC8AC460080D023 /* XCRemoteSwiftPackageReference "firebase-ios-sdk" */ = {