test: 200-399 HTTP status has log level info

[philipphofmann]

Add tests to validate that 200-399 HTTP status codes return the log level info for crumbs, as pointed out in the develop docs: https://develop.sentry.dev/sdk/expected-features/#http-client-integrations.

Follow up on GH-4779, came up in getsentry/team-sdks#100 (comment).

#skip-changelog

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.247%. Comparing base (9ef38ea) to head (fed6924).
Report is 3 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #4879       +/-   ##
=============================================
- Coverage   92.257%   92.247%   -0.011%     
=============================================
  Files          659       659               
  Lines        77328     77382       +54     
  Branches     27945     27965       +20     
=============================================
+ Hits         71341     71383       +42     
- Misses        5891      5899        +8     
- Partials        96       100        +4     

Files with missing lines	Coverage Δ
...erformance/Network/SentryNetworkTrackerTests.swift	99.070% <100.000%> (+0.044%)	⬆️

... and 19 files with indirect coverage changes

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