Improvements

- [snapshot] Update docs for concurrent simulator support (#10182) via David Ohayon
- [download_dsyms] Add option to download latest dSYM file  (#10129) via Addison Brickey
- [deliver] Fix screenshot uploads (#10175) via Luis Ramos
- [testfairy] Handle timeouts (#10124) via Joseph Petersen
- Update xcode-install dependency (#10139) via Felix Krause

https://github.com/fastlane/fastlane/releases/tag/2.54.4
