ref: Remove v9 checks for debug image provider

[noahsmartin]

The V9 migration makes this class internal instead of public, which means it needs to be migrated to Swift to be part of the Swift dependency container. This removes the V9 checks and migrates it to Swift

#skip-changelog

Closes #6455

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 87.009%. Comparing base (1bf44b4) to head (cd501e4).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
Sources/Sentry/SentryDebugImageProviderInternal.m	80.000%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #6454       +/-   ##
=============================================
+ Coverage   86.795%   87.009%   +0.213%     
=============================================
  Files          450       451        +1     
  Lines        37806     37751       -55     
  Branches     17493     17476       -17     
=============================================
+ Hits         32814     32847       +33     
+ Misses        4949      4859       -90     
- Partials        43        45        +2     

Files with missing lines	Coverage Δ
SentryTestUtils/TestDebugImageProvider.swift	100.000% <ø> (+27.272%)	⬆️
Sources/Sentry/PrivateSentrySDKOnly.m	25.000% <ø> (+1.213%)	⬆️
...ces/Sentry/Profiling/SentryProfilerSerialization.m	86.219% <ø> (ø)
Sources/Sentry/SentryANRTrackingIntegration.m	97.041% <ø> (ø)
Sources/Sentry/SentryClient.m	99.327% <ø> (ø)
Sources/Sentry/SentryDependencyContainer.m	90.254% <ø> (ø)
Sources/Sentry/SentryTracer.m	97.712% <ø> (+0.163%)	⬆️
...s/Swift/SentryCrash/SentryDebugImageProvider.swift	100.000% <100.000%> (ø)
Sources/Sentry/SentryDebugImageProviderInternal.m	81.176% <80.000%> (ø)

... and 11 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1225.89 ms	1260.51 ms	34.62 ms
Size	23.75 KiB	1021.48 KiB	997.73 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
083e8c5	1227.74 ms	1262.37 ms	34.62 ms
0309548	1225.04 ms	1252.82 ms	27.77 ms
7d23639	1237.93 ms	1243.04 ms	5.11 ms
3ffd0e5	1228.04 ms	1253.04 ms	25.00 ms
d8ceea3	1234.15 ms	1263.92 ms	29.77 ms
fac4ca3	1222.81 ms	1235.83 ms	13.02 ms
6d40fee	1217.47 ms	1245.37 ms	27.90 ms
09471ff	1239.98 ms	1256.65 ms	16.67 ms
5cbd333	1219.93 ms	1241.76 ms	21.83 ms
45482a6	1225.88 ms	1254.27 ms	28.39 ms

App size

Revision	Plain	With Sentry	Diff
083e8c5	23.75 KiB	981.75 KiB	958.00 KiB
0309548	23.75 KiB	994.74 KiB	970.99 KiB
7d23639	23.75 KiB	891.01 KiB	867.26 KiB
3ffd0e5	23.75 KiB	947.55 KiB	923.80 KiB
d8ceea3	23.75 KiB	980.81 KiB	957.07 KiB
fac4ca3	23.75 KiB	902.01 KiB	878.27 KiB
6d40fee	23.75 KiB	912.37 KiB	888.63 KiB
09471ff	23.75 KiB	990.16 KiB	966.41 KiB
5cbd333	23.74 KiB	969.77 KiB	946.02 KiB
45482a6	23.75 KiB	919.91 KiB	896.16 KiB

Previous results on branch: debugImageProviderV9

Startup times

Revision	Plain	With Sentry	Diff
98bfcdb	1231.44 ms	1265.30 ms	33.86 ms

App size

Revision	Plain	With Sentry	Diff
98bfcdb	23.75 KiB	1021.48 KiB	997.73 KiB