fix: Write NSException reason for crash report

[philipphofmann]

📜 Description

Correctly write the NSException reason when writing a crash report. When writing a crash report for NSException the crash report writer wrote the crash reason to ReferencedObject, which didn't make any sense. This is fixed now by using the reason field.

💡 Motivation and Context

Fixes GH-3265

💚 How did you test it?

Unit tests.

📝 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

[codecov]

Codecov Report

Attention: Patch coverage is 90.69767% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 89.224%. Comparing base (e3adcd5) to head (a7976f0).
Report is 5 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #3705       +/-   ##
=============================================
- Coverage   89.299%   89.224%   -0.075%     
=============================================
  Files          534       533        -1     
  Lines        58976     58706      -270     
  Branches     21175     20800      -375     
=============================================
- Hits         52665     52380      -285     
- Misses        5390      5400       +10     
- Partials       921       926        +5     

Files	Coverage Δ
Sources/SentryCrash/Recording/SentryCrashReport.c	31.693% <100.000%> (+1.247%)	⬆️
...egrations/SentryCrash/SentryCrashReportTests.swift	90.517% <90.000%> (-0.273%)	⬇️

... and 91 files with indirect coverage changes

---

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1230.35 ms	1247.74 ms	17.40 ms
Size	21.58 KiB	540.04 KiB	518.45 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3297d6e	1228.57 ms	1255.04 ms	26.47 ms
6129be5	1215.65 ms	1247.18 ms	31.54 ms
dacf894	1232.32 ms	1236.34 ms	4.02 ms
7bbb7c3	1232.40 ms	1249.78 ms	17.38 ms
ddc9b9a	1210.00 ms	1234.18 ms	24.18 ms
06548c0	1226.71 ms	1252.37 ms	25.66 ms
ee8b48f	1196.80 ms	1213.48 ms	16.68 ms
881a955	1209.47 ms	1225.94 ms	16.47 ms
8f397a7	1219.12 ms	1236.67 ms	17.55 ms
f576153	1210.02 ms	1228.94 ms	18.92 ms

App size

Revision	Plain	With Sentry	Diff
3297d6e	21.58 KiB	418.45 KiB	396.86 KiB
6129be5	21.58 KiB	418.00 KiB	396.42 KiB
dacf894	20.76 KiB	426.34 KiB	405.58 KiB
7bbb7c3	21.58 KiB	418.78 KiB	397.20 KiB
ddc9b9a	20.76 KiB	420.40 KiB	399.64 KiB
06548c0	20.76 KiB	427.36 KiB	406.59 KiB
ee8b48f	21.58 KiB	418.70 KiB	397.11 KiB
881a955	22.85 KiB	407.63 KiB	384.78 KiB
8f397a7	20.76 KiB	420.55 KiB	399.79 KiB
f576153	20.76 KiB	425.77 KiB	405.01 KiB

Previous results on branch: fix/write-nsexception-reason

Startup times

Revision	Plain	With Sentry	Diff
a90fed0	1235.18 ms	1245.20 ms	10.02 ms
7c44990	1233.92 ms	1246.12 ms	12.21 ms

App size

Revision	Plain	With Sentry	Diff
a90fed0	21.58 KiB	540.04 KiB	518.46 KiB
7c44990	21.58 KiB	539.81 KiB	518.23 KiB

[brustolin]

LGTM