feat: Add significant time change breadcrumb

[philipphofmann]

📜 Description

When iOS posts a UIApplicationSignificantTimeChangeNotification, the Cocoa SDK now adds a breadcrumb.

Docs PR getsentry/sentry-docs#14848.

💡 Motivation and Context

Fixes GH-5161 and unblocks .NET

💚 How did you test it?

Unit test and manually change the time on an actual device.

https://sentry-sdks.sentry.io/issues/6605337140/events/87c3cc007f8f4bd4b0cc4caaeea17eed/?project=5428557

📝 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.

[github-actions]

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

Generated by 🚫 dangerJS against eb6225d

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.490%. Comparing base (37238de) to head (eb6225d).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #6112       +/-   ##
=============================================
- Coverage   86.578%   86.490%   -0.089%     
=============================================
  Files          433       432        -1     
  Lines        36941     36826      -115     
  Branches     17418     17328       -90     
=============================================
- Hits         31983     31851      -132     
- Misses        4914      4932       +18     
+ Partials        44        43        -1     

Files with missing lines	Coverage Δ
Sources/Sentry/SentrySystemEventBreadcrumbs.m	100.000% <100.000%> (ø)

... and 22 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 37238de...eb6225d. Read the comment docs.

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1210.55 ms	1238.53 ms	27.98 ms
Size	23.75 KiB	963.16 KiB	939.41 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
6502818	1229.08 ms	1245.46 ms	16.37 ms
75b23cd	1227.10 ms	1253.61 ms	26.51 ms
efa740d	1220.71 ms	1246.20 ms	25.50 ms
35c962f	1207.61 ms	1235.90 ms	28.29 ms
fc05805	1220.63 ms	1252.16 ms	31.54 ms
5846fc5	1223.25 ms	1248.79 ms	25.54 ms
397b9c9	1230.23 ms	1249.29 ms	19.06 ms
db9572a	1223.13 ms	1241.60 ms	18.47 ms
2e79f5f	1220.53 ms	1249.35 ms	28.82 ms
5cfc768	1220.74 ms	1245.06 ms	24.32 ms

App size

Revision	Plain	With Sentry	Diff
6502818	23.75 KiB	959.45 KiB	935.70 KiB
75b23cd	23.75 KiB	933.66 KiB	909.92 KiB
efa740d	23.75 KiB	919.69 KiB	895.95 KiB
35c962f	23.75 KiB	854.77 KiB	831.02 KiB
fc05805	23.75 KiB	908.02 KiB	884.27 KiB
5846fc5	23.75 KiB	912.77 KiB	889.02 KiB
397b9c9	23.75 KiB	959.44 KiB	935.70 KiB
db9572a	23.75 KiB	858.64 KiB	834.89 KiB
2e79f5f	23.75 KiB	928.87 KiB	905.12 KiB
5cfc768	23.75 KiB	850.73 KiB	826.98 KiB

Previous results on branch: feat/significant-time-change-notification

Startup times

Revision	Plain	With Sentry	Diff
e067157	1213.98 ms	1252.63 ms	38.65 ms
b64543e	1244.02 ms	1247.17 ms	3.15 ms

App size

Revision	Plain	With Sentry	Diff
e067157	23.75 KiB	963.16 KiB	939.41 KiB
b64543e	23.75 KiB	963.15 KiB	939.40 KiB

[philprime]

LGTM, left minor priority comments

[github-actions]

🚨 Detected changes in high risk code 🚨

High-risk code can easily blow up and is hard to test. We had severe bugs in the past. Be extra careful when changing these files, and have an extra careful look at these:

• .github/file-filters.yml