`SentryCrashMonitor_MachException` crashes on macOS

### Environment

Sentry SaaS (sentry.io)

Sentry Cocoa 7.7.0

### Steps to Reproduce

1. Look at this report: https://sentry.io/organizations/sindresorhus/issues/2884292704/events/a191dd6573534c37aa3b87fd18430a52/
2. Notice how it crashed in "Sources/SentryCrash/Recording/Monitors/SentryCrashMonitor_MachException.c:266"

```
libsystem_kernel 0x189c29954 mach_msg_trap
libsystem_kernel 0x189c29cfc mach_msg
Lungo 0x10024cb20 handleExceptions (Sources/SentryCrash/Recording/Monitors/SentryCrashMonitor_MachException.c:266)
libsystem_pthread 0x189c6523c _pthread_start
```

### Expected Result

I expected the crash monitor to not crash.

### Actual Result

It crashed.

The crash happened for a random user. I cannot reproduce it myself.