feat(metrics): Add rate limits

[philipphofmann]

📜 Description

This adds the handling of rate limits for the new metric_bucket category, including handling the metric namespace.

💡 Motivation and Context

Fixes GH-3805

💚 How did you test it?

Unit tests

📝 Checklist

You have to check all boxes before merging:

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 6733b7f

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.961%. Comparing base (9ce54cc) to head (6733b7f).

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #3838       +/-   ##
=============================================
+ Coverage   90.944%   90.961%   +0.017%     
=============================================
  Files          560       560               
  Lines        44216     44256       +40     
  Branches     15764     15771        +7     
=============================================
+ Hits         40212     40256       +44     
+ Misses        3824      3821        -3     
+ Partials       180       179        -1     

Files	Coverage Δ
Sources/Sentry/SentryDataCategoryMapper.m	98.275% <100.000%> (ø)
Sources/Sentry/SentryRateLimitParser.m	100.000% <100.000%> (ø)
...king/RateLimits/SentryDefaultRateLimitsTests.swift	100.000% <100.000%> (ø)
...sts/Networking/SentryDataCategoryMapperTests.swift	100.000% <100.000%> (ø)
...tryTests/Networking/SentryHttpTransportTests.swift	99.664% <100.000%> (+0.003%)	⬆️

... and 3 files with indirect coverage changes

---

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1236.58 ms	1255.33 ms	18.75 ms
Size	21.58 KiB	573.85 KiB	552.26 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
af1f4dd	1225.39 ms	1245.48 ms	20.09 ms
b15521e	1224.44 ms	1251.13 ms	26.68 ms
6e342ac	1202.98 ms	1228.74 ms	25.76 ms
0204c72	1196.45 ms	1208.92 ms	12.47 ms
66922ca	1221.68 ms	1235.98 ms	14.30 ms
02a972c	1207.08 ms	1221.78 ms	14.70 ms
dc0fe58	1198.56 ms	1220.98 ms	22.42 ms
1ee3d54	1241.80 ms	1250.67 ms	8.87 ms
bb5dc7d	1240.44 ms	1266.45 ms	26.01 ms
05644fe	1244.04 ms	1244.46 ms	0.42 ms

App size

Revision	Plain	With Sentry	Diff
af1f4dd	22.85 KiB	414.71 KiB	391.86 KiB
b15521e	21.58 KiB	573.18 KiB	551.60 KiB
6e342ac	20.76 KiB	436.66 KiB	415.90 KiB
0204c72	21.58 KiB	540.04 KiB	518.45 KiB
66922ca	20.76 KiB	425.80 KiB	405.04 KiB
02a972c	22.85 KiB	413.42 KiB	390.57 KiB
dc0fe58	20.76 KiB	436.50 KiB	415.74 KiB
1ee3d54	21.58 KiB	571.76 KiB	550.18 KiB
bb5dc7d	22.85 KiB	412.98 KiB	390.13 KiB
05644fe	22.85 KiB	408.88 KiB	386.03 KiB