Chore: Migrate to sentry cocoa v8

[denrase]

📜 Description

Closes #1161
Closes #1185

💚 How did you test it?

Updated tests

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• I updated the docs if needed
• All tests passing
• No breaking changes

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (v7.0.0@fab2a9a). Click here to learn what that means.
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff            @@
##             v7.0.0    #1197   +/-   ##
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  Coverage          ?   89.90%           
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  Files             ?      120           
  Lines             ?     3684           
  Branches          ?        0           
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  Hits              ?     3312           
  Misses            ?      372           
  Partials          ?        0           

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[marandaneto]

@denrase I have changed to 8.0.0-rc.1
Not sure if there are more breaking changes, can you take a look?

@brustolin and @philipphofmann would you be kind to review this as well? thanks.

[marandaneto]

The configuration changes in the migration docs should be fixed I guess https://github.com/getsentry/sentry-docs/pull/5939/files
Flutter and Android options naming stay the same for now but we'd need to account for the changes for iOS.

[philipphofmann]

@denrase I have changed to 8.0.0-rc.1 Not sure if there are more breaking changes, can you take a look?

All the breaking changes are in the Changelog. The migration docs are also almost ready. I have still a PR open for the final touches.

[philipphofmann]

We have many more breaking changes in the Changelog. I would be surprised if you don't need more changes in this PR.

I would expect the following changes to bubble up here

• Rename APM tracking feature flags to tracing (Ignore Flutter Web source context error in Sentry Frontend for internal dart files #2450)
  • Rename SentryOptions.enableAutoPerformanceTracking to enableAutoPerformanceTracing
  • Rename SentryOptions.enableUIViewControllerTracking to enableUIViewControllerTracing
  • Rename SentryOptions.enablePreWarmedAppStartTracking to enablePreWarmedAppStartTracing
  • Rename SentryOptions.enableFileIOTracking to enableFileIOTracing
  • Rename SentryOptions.enableCoreDataTracking to enableCoreDataTracing
• Rename SentryOptions.enableOutOfMemoryTracking to SentryOptions.enableWatchdogTerminationTracking (SentryFlutter.Init will block the main thread in Profile/Release mode of version 8.11.0 #2499)

[marandaneto]

#1222 has fixes that are needed for this PR, this PR also has this PR as the target branch, maybe we merge it?

[denrase]

@marandaneto CI seems happy now. Rdy for re-review.

[marandaneto]

Left 2 comments, but other than that, LGTM.