Fix macOS 13 compatibility

[nekohasekai]

Summary

• Replace asyncAndWait with sync to fix crash on macOS 13

Problem

DispatchQueue.asyncAndWait(execute:) is only available on macOS 14+. Using #available check doesn't help because the symbol is still hard-linked in the binary, causing dyld to crash at launch on older systems:

Symbol not found: _$sSo17OS_dispatch_queueC8DispatchE12asyncAndWait7executexxyKXE_tKlF
Expected in: /usr/lib/swift/libswiftDispatch.dylib

Solution

Use DispatchQueue.main.sync(execute:) instead, which has equivalent behavior and is available on all macOS versions.

[Copilot]

Pull request overview

This PR fixes a crash on macOS 13 by replacing an API that's only available on macOS 14+ with a backward-compatible equivalent. The issue was that asyncAndWait caused dyld to crash at launch on macOS 13 due to hard-linking of unavailable symbols, even when guarded with availability checks.

Key Changes:

• Replace DispatchQueue.main.asyncAndWait(execute:) with DispatchQueue.main.sync(execute:) which has identical behavior and is available on macOS 13+

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