Ensure iOS trim tests run in CI

[jamescrosswell]

We have trim tests for Android and iOS but currently we're not running the iOS ones in CI. To turn these on we'd need to install provisioning profiles etc. on the CI runner.

sentry-dotnet/.github/workflows/build.yml

Lines 230 to 234 in 9e40b76

	# We can't publish iOS applications on CI yet. We'd need a valid bundle identifier and to install the relevant
	# certificates/profiles on CI (presumably certs associated with the Sentry org).
	# See https://youtrack.jetbrains.com/issue/RIDER-17115/Could-not-find-any-available-provisioning-profiles-for-iOS
	# - name: Publish Test app (iOS)
	# run: dotnet publish test/Sentry.MauiTrimTest/Sentry.MauiTrimTest.csproj -c Release -f net9.0-ios18.0 -r ios-arm64

Maybe chat to the Cocoa SDK team to see if they have an Apple Developer account for the Sentry org with a provisioning profile that we can use for this.

[jamescrosswell]

@philipphofmann or @armcknight are either of you able to help here? Do we already do anything like this for the Cocoa SDK (integration tests maybe)?

[philipphofmann]

@jamescrosswell, yes we use fastlane for this. A good starting point is https://github.com/getsentry/sentry-cocoa/blob/main/.github/workflows/testflight.yml and https://github.com/getsentry/sentry-cocoa/tree/main/fastlane. We keep the signing keys in a private GH repo https://github.com/getsentry/codesigning.