test: use spawnSyncAndExit{,WithoutError}()

[lpinca]

Use spawnSyncAndExit() and spawnSyncAndExitWithoutError() in
test/parallel/test-macos-app-sandbox.js.

Refs: #54802 (comment)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.16%. Comparing base (dc5d0f9) to head (b6a59dd).
Report is 11 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #56529 +/- ##
==========================================
- Coverage 89.16% 89.16% -0.01% 
==========================================
Files 662 662 Lines 191668 191672 +4 Branches 36884 36883 -1 ==========================================
- Hits 170908 170905 -3 - Misses 13621 13627 +6 - Partials 7139 7140 +1 

see 42 files with indirect coverage changes

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/64423/

[lpinca]

spawnSyncAndExit() is not very useful here as the process is terminated with SIGTRAP or SIGKILL in CI. It's not worth the effort. I'm closing this.