impr: Add uptime to SDK log messages

[philipphofmann]

📜 Description

Add the system uptime to the SDK log messages to know precisely when the logger logs. This can help when investigating issues by reading the SDK log messages.

💡 Motivation and Context

For investigating the raw logs of flaky tests this can be highly useful to understand exactly where a test might have hanged.

💚 How did you test it?

Unit tests.

📝 Checklist

You have to check all boxes before merging:

• 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.
• I updated the wizard 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]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1226.76 ms	1250.80 ms	24.04 ms
Size	22.31 KiB	780.97 KiB	758.66 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
b9d59f7	1250.71 ms	1257.78 ms	7.06 ms
9ce54cc	1230.31 ms	1237.20 ms	6.90 ms
72c8d84	1238.96 ms	1247.34 ms	8.38 ms
f8833c4	1236.45 ms	1252.82 ms	16.37 ms
7cd187e	1243.04 ms	1244.79 ms	1.75 ms
253bb71	1221.62 ms	1250.82 ms	29.20 ms
3eb2a52	1241.48 ms	1250.50 ms	9.02 ms
21fd61f	1226.42 ms	1247.52 ms	21.10 ms
1bbcb9c	1189.61 ms	1223.50 ms	33.89 ms
be51b56	1220.84 ms	1249.36 ms	28.52 ms

App size

Revision	Plain	With Sentry	Diff
b9d59f7	22.85 KiB	405.77 KiB	382.93 KiB
9ce54cc	21.58 KiB	573.71 KiB	552.13 KiB
72c8d84	22.85 KiB	408.88 KiB	386.03 KiB
f8833c4	21.58 KiB	422.66 KiB	401.08 KiB
7cd187e	20.76 KiB	401.65 KiB	380.89 KiB
253bb71	20.76 KiB	393.37 KiB	372.60 KiB
3eb2a52	20.76 KiB	393.38 KiB	372.62 KiB
21fd61f	20.76 KiB	435.50 KiB	414.74 KiB
1bbcb9c	20.76 KiB	426.10 KiB	405.34 KiB
be51b56	20.76 KiB	432.20 KiB	411.44 KiB

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.390%. Comparing base (3dcba20) to head (dd0011a).

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #4781       +/-   ##
=============================================
- Coverage   91.395%   91.390%   -0.005%     
=============================================
  Files          627       627               
  Lines        74573     74594       +21     
  Branches     26823     26838       +15     
=============================================
+ Hits         68156     68172       +16     
- Misses        6319      6323        +4     
- Partials        98        99        +1     

Files with missing lines	Coverage Δ
Sources/Swift/Tools/SentryLog.swift	78.947% <100.000%> (+4.479%)	⬆️
Tests/SentryTests/Helper/SentryLog.swift	100.000% <100.000%> (ø)
Tests/SentryTests/Helper/SentryLogTests.swift	100.000% <100.000%> (ø)

... and 8 files with indirect coverage changes

---

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[armcknight]

We can't send this data off-device, see https://developer.apple.com/documentation/bundleresources/app-privacy-configuration/nsprivacyaccessedapitypes/nsprivacyaccessedapitype?language=objc (search for NSPrivacyAccessedAPICategorySystemBootTime).

The only exception is derived data that calculates a duration. Otherwise, we can't send the raw value or other derivations off-device.