fix: Reporting SDK's name on Apple platforms

[bitsandfoxes]

Since we're not building the Cocoa SDK we have to set the name ourselves. When targeting iOS and configuring the Cocoa SDK at build-time, this is already implemented:

sentry-unity/src/Sentry.Unity.Editor.iOS/NativeOptions.cs

Line 24 in 3add276

[PrivateSentrySDKOnly setSdkName:@""sentry.cocoa.unity""];

This was missing when setting RuntimeInitialization, or when running on macOS in general.

#skip-changelog

[bruno-garcia]

Any other SDK that changed for submodule to dep needs to do this? Like .NET or Unreal?
cc @tustanivsky

[bruno-garcia]

.NET is done here:

https://github.com/getsentry/sentry-dotnet/blob/084e3b4bf2c043b42ad6b11892a604e027b3d1a5/src/Sentry/Platforms/Cocoa/SentrySdk.cs#L147

[tustanivsky]

We're already doing similar thing for Unreal:
https://github.com/getsentry/sentry-unreal/blob/42f1fbf6e506e113ab8df8ed3870c8afd62d6f8d/plugin-dev/Source/Sentry/Private/Apple/AppleSentrySubsystem.cpp#L41