feat: Deserializing SentryMechanism

[philipphofmann]

This PR is based on #4724.

#skip-changelog

[github-actions]

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

Generated by 🚫 dangerJS against 65ba4e7

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.236%. Comparing base (1c53492) to head (65ba4e7).
Report is 1 commits behind head on feat/deserializing-events.

Additional details and impacted files

@@                       Coverage Diff                       @@
##           feat/deserializing-events     #4746       +/-   ##
===============================================================
- Coverage                     91.321%   91.236%   -0.086%     
===============================================================
  Files                            635       636        +1     
  Lines                          73368     73414       +46     
  Branches                       26762     26112      -650     
===============================================================
- Hits                           67001     66980       -21     
- Misses                          6271      6342       +71     
+ Partials                          96        92        -4     

Files with missing lines	Coverage Δ
...wift/Protocol/Codable/SentryMechanismCodable.swift	100.000% <100.000%> (ø)
...ts/SentryTests/Protocol/SentryMechanismTests.swift	97.222% <100.000%> (+2.485%)	⬆️

... and 19 files with indirect coverage changes

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Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1229.86 ms	1256.62 ms	26.76 ms
Size	22.31 KiB	789.76 KiB	767.45 KiB

Baseline results on branch: feat/deserializing-events

Startup times

Revision	Plain	With Sentry	Diff
04e8394	1223.24 ms	1244.33 ms	21.08 ms
378d4bd	1216.53 ms	1241.19 ms	24.66 ms
8dae1f6	1212.60 ms	1226.52 ms	13.93 ms
8a562cc	1228.57 ms	1245.18 ms	16.60 ms

App size

Revision	Plain	With Sentry	Diff
04e8394	22.31 KiB	771.93 KiB	749.62 KiB
378d4bd	22.31 KiB	784.05 KiB	761.73 KiB
8dae1f6	22.31 KiB	772.51 KiB	750.20 KiB
8a562cc	22.31 KiB	773.33 KiB	751.02 KiB