ref: Convert SentryThreadWrapper to Swift

[noahsmartin]

#skip-changelog

Closes #6224

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
3969	1	3968	17

View the top 3 failed test(s) by shortest run time

SentryCrashBinaryImageCacheTests::testRemoveImageAddAgain

Stack Traces | 0s run time

.../SentryTests/SentryCrash/SentryCrashBinaryImageCacheTests.m:310 - ((counter) equal to (expected)) failed: ("6") is not equal to ("5")

iOS_SwiftUI_UITests.LaunchUITests::testTransactionSpan

Stack Traces | 0s run time

.../iOS-SwiftUI/iOS-SwiftUI-UITests/LaunchUITests.swift:18 - Failed to get matching snapshots: Timed out while evaluating UI query.

iOS_Swift_UITests.UserFeedbackUITests::testAddingScreenshots

Stack Traces | 0s run time

.../iOS-Swift/iOS-Swift-UITests/UserFeedbackUITests.swift:670 - XCTUnwrap failed: expected non-nil value of type "String"

iOS_Swift_UITests.ViewLifecycleUITests::testViewLifecycle_callingDismissWithViewWillAppear_shouldNotCrashSDK

Stack Traces | 0s run time

.../iOS-Swift/iOS-Swift-UITests/ViewLifecycleUITests.swift:60 - Failed to tap "view-lifecycle-test" Button: Timed out while evaluating UI query.

View the full list of 1 ❄️ flaky tests

SentryTests.SentrySDKInternalTests::testResumeAndPauseAppHangTracking

Flake rate in main: 14.00% (Passed 43 times, Failed 7 times)

Stack Traces | 0s run time

.../Tests/SentryTests/SentrySDKInternalTests.swift:632 - XCTAssertEqual failed: ("1") is not equal to ("0") - The SDK should capture an AppHang after resuming the tracking, but it didn't.

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1238.84 ms	1261.29 ms	22.45 ms
Size	23.74 KiB	978.22 KiB	954.48 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
8e3a42f	1222.90 ms	1245.67 ms	22.77 ms
c03a8d8	1234.77 ms	1259.19 ms	24.42 ms
67e8e3e	1238.80 ms	1266.02 ms	27.22 ms
62f8d2a	1226.24 ms	1249.92 ms	23.67 ms
bbe6658	1221.00 ms	1248.51 ms	27.51 ms
d06a4db	1233.20 ms	1243.18 ms	9.98 ms
0529194	1237.23 ms	1254.67 ms	17.44 ms
8fd192f	1202.10 ms	1220.19 ms	18.09 ms
25f2d2c	1232.02 ms	1242.78 ms	10.76 ms
870b081	1226.77 ms	1246.33 ms	19.56 ms

App size

Revision	Plain	With Sentry	Diff
8e3a42f	23.75 KiB	880.06 KiB	856.31 KiB
c03a8d8	23.75 KiB	928.15 KiB	904.40 KiB
67e8e3e	23.75 KiB	919.88 KiB	896.13 KiB
62f8d2a	23.75 KiB	926.80 KiB	903.05 KiB
bbe6658	23.75 KiB	908.02 KiB	884.27 KiB
d06a4db	23.75 KiB	913.18 KiB	889.43 KiB
0529194	23.74 KiB	891.02 KiB	867.28 KiB
8fd192f	23.74 KiB	872.75 KiB	849.01 KiB
25f2d2c	23.75 KiB	866.69 KiB	842.94 KiB
870b081	23.75 KiB	974.89 KiB	951.15 KiB

Previous results on branch: convertSentryThreadWrapperSwift

Startup times

Revision	Plain	With Sentry	Diff
0dace30	1221.45 ms	1246.04 ms	24.59 ms

App size

Revision	Plain	With Sentry	Diff
0dace30	23.74 KiB	977.30 KiB	953.56 KiB

[philprime]

LGTM