Need to mitigate spurious failures in CI jobs on macOS, iOS, Android

Majority of failures are spurious failures. Examples:

• macOS, llvm / rust crashes:
  • (signal: 11, SIGSEGV: invalid memory reference)
  • (signal: 6, SIGABRT: process abort signal)
  • LLVM ERROR: Type mismatch in constant table!
  • LLVM ERROR: Invalid abbrev number
  • error: failed to parse bitcode for LTO module: Invalid record (Producer: 'LLVM14.0.5-rust-1.63.0-stable' Reader: 'LLVM 14.0.5-rust-1.63.0-stable')
  • returned -6 no errors in the log, the only discerning feature is that the return code is -6
  • fatal runtime error: assertion failed: thread_info.is_none()
• macOS, network failures:
  • curl: (22) The requested URL returned error: 503 could have curl retry when this happens
  • curl: (56) LibreSSL SSL_read: error:02FFF036:system library:func(4095):Connection reset by peer, errno 54 also retry curl when this happens
  • warning: spurious network error (1 tries remaining): SecureTransport error: connection closed via error; class=Net (12) error: failed to sync retry this too, happens in cargo
• macOS, python crashes:
  • ./cerbero-uninstalled: line 118: 903 Segmentation fault: 11 $PYTHON -c """
• Android examples, network failures
  • Warning: An error occurred while preparing SDK package Android SDK Tools: Connection reset.:
• iOS examples, XCode crashes
  • unexpected service error: The Xcode build system has crashed. Build again to continue.error: unexpected service error: The Xcode build system has crashed. Build again to continue.
• MSVC, permission errors:
  • fatal error C1083: Cannot open compiler generated file: [...] Permission denied