[Bug]: CarPlay Simulator crashes on iOS versions > 26.3

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Description of the bug

The CarPlay example works on the iOS 18/26.3 simulator, but on iOS 26.4.1 and above the CarPlay crashes immediately when the CarPlay scene launches. However the app process does not crash. Apple’s CarPlayTemplateUIHost crashes with doesNotRecognizeSelector in CPSMapTemplateViewController _updateShareButtonVisibility / _configureNavigationBarShareButton.

I reduced the setup to a bare minimum CPMapTemplate() with no Google map content, and it still crashes, which suggests an Apple CarPlay Simulator regression rather than an issue in the Flutter integration.

Needs further investigation.

### Flutter version

3.41.8

### Package version

0.92

### Native SDK versions

- [x] I haven't changed the version of the native SDKs

### Flutter Doctor Output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.41.8, on macOS 26.4.1 25E253 darwin-arm64, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 36.1.0)
[✓] Xcode - develop for iOS and macOS (Xcode 26.5)
[✓] Chrome - develop for the web
[✓] Connected device (3 available)
[✓] Network resources

### Steps to reproduce

Run the example and start carplay app.

### Expected vs Actual Behavior

Should work normally and not crash.

### Code Sample

-

### Additional Context

_No response_