feat: app hang capture on desktop

[bitsandfoxes]

With getsentry/sentry-native#1806 sentry-native gained the ability to capture app hangs in-proc for macOS, Linux, and Windows.
The options controlling this feature got added as experimental and default to false right now.
Added the app hang capture to our e2e testing suite.

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[JoshuaMoelans]

A few comments, but looks good overall! Only softly blocking on the stubs & fixing the changelog :)

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In https://github.com/getsentry/sentry-unity/blob/feat/native-app-hang/src/Sentry.Unity.iOS/SentryNativeCocoa.cs#L45-L51 we disable the AnrIntegration if EnableAppHangTracking is true; should we do the same for macOS (it is currently gated behind platform == RuntimePlatform.IPhonePlayer

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Do we need stubs for the new sentry_options_set_enable_app_hang_tracking, sentry_options_set_app_hang_timeout, and sentry_app_hang_heartbeat in https://github.com/getsentry/sentry-unity/blob/feat/native-app-hang/package-dev/Plugins/Switch/sentry_native_stubs.c ?

[bitsandfoxes]

In https://github.com/getsentry/sentry-unity/blob/feat/native-app-hang/src/Sentry.Unity.iOS/SentryNativeCocoa.cs#L45-L51 we disable the AnrIntegration if EnableAppHangTracking is true; should we do the same for macOS (it is currently gated behind platform == RuntimePlatform.IPhonePlayer

When targeting macOS and using Cocoa, then there is no ANR support other than the C# AnrIntegration. But something is brewing over at getsentry/sentry-cocoa#8118 to improve on that. With the sentry-native on macOS, that code in SentryNativeCocoa never gets executed.

[bitsandfoxes]

Do we need stubs for the new sentry_options_set_enable_app_hang_tracking, sentry_options_set_app_hang_timeout, and sentry_app_hang_heartbeat in https://github.com/getsentry/sentry-unity/blob/feat/native-app-hang/package-dev/Plugins/Switch/sentry_native_stubs.c ?

Great catch! Totally missed that. Thanks!

[JoshuaMoelans]

LGTM, thanks for addressing all the comments 🫶