feat: Prewarmed App Start Tracing is stable

[philipphofmann]

📜 Description

Make the option enablePreWarmedAppStartTracing stable.

Docs PR getsentry/sentry-docs#8812.

💡 Motivation and Context

The option has been in beta for over a year. We didn't hear any complaints about the feature. Let's make it stable and fix problems if required. The plan is to turn this feature on by default in the next major #3535.

💚 How did you test it?

No complaints.

📝 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 f02fee0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f74904f) 89.213% compared to head (f02fee0) 89.258%.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #3536       +/-   ##
=============================================
+ Coverage   89.213%   89.258%   +0.045%     
=============================================
  Files          528       528               
  Lines        57620     57638       +18     
  Branches     20637     20646        +9     
=============================================
+ Hits         51405     51447       +42     
- Misses        5185      5278       +93     
+ Partials      1030       913      -117     

see 35 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1215.91 ms	1235.42 ms	19.50 ms
Size	21.58 KiB	418.70 KiB	397.12 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
e681215	6240.94 ms	6254.36 ms	13.42 ms
4053ee9	1248.04 ms	1250.82 ms	2.78 ms
302ee8b	1194.02 ms	1223.34 ms	29.32 ms
25bcc50	1240.47 ms	1254.70 ms	14.23 ms
cce35c6	1228.88 ms	1241.14 ms	12.26 ms
7bb0873	1226.18 ms	1247.30 ms	21.12 ms
10ee2ce	1250.90 ms	1258.57 ms	7.67 ms
7bc3c0d	1212.35 ms	1228.94 ms	16.59 ms
f587451	1271.63 ms	1275.90 ms	4.27 ms
d61b939	1238.61 ms	1240.08 ms	1.47 ms

App size

Revision	Plain	With Sentry	Diff
e681215	20.76 KiB	431.91 KiB	411.15 KiB
4053ee9	20.76 KiB	435.22 KiB	414.46 KiB
302ee8b	20.76 KiB	419.62 KiB	398.87 KiB
25bcc50	20.76 KiB	427.22 KiB	406.46 KiB
cce35c6	20.76 KiB	425.80 KiB	405.04 KiB
7bb0873	22.85 KiB	407.09 KiB	384.24 KiB
10ee2ce	20.76 KiB	427.77 KiB	407.00 KiB
7bc3c0d	20.76 KiB	427.35 KiB	406.59 KiB
f587451	20.76 KiB	435.25 KiB	414.49 KiB
d61b939	22.85 KiB	407.63 KiB	384.78 KiB

Previous results on branch: feat/prewarmed-app-start-tracing-ga

Startup times

Revision	Plain	With Sentry	Diff
81d9906	1209.80 ms	1229.04 ms	19.24 ms

App size

Revision	Plain	With Sentry	Diff
81d9906	21.58 KiB	418.70 KiB	397.12 KiB