Fix download_dsyms.rb ‘latest’

[humblehacker]

When version is set to latest, the following changes apply
• choose the edit version before the live version, since the edit version will be newer
• nil out version since AppVersion.version will not necessarily match any version in a BuildTrain
• return immediately if a build_number is found, since there will only be one dSYM for a given build number

Closes #10255

Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Motivation and Context

Description

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[humblehacker]

I signed it!

[googlebot]

CLAs look good, thanks!

[humblehacker]

I'm unable to run rspec tests due to issue #9177

[ohayon]

Is there a reason for setting this to nil?

[humblehacker]

Yes, the reason is in my commit message:

nil out version since AppVersion.version will not necessarily match any version in a BuildTrain

[humblehacker]

Just in case that's not clear, if I understand correctly, AppVersion.version corresponds with the version number set in iTunes Connect, which is user settable and does not have to match the version number in the IPA. For example, for necessary but irrelevant reasons, our versions are 6.12 and 1006.12.

[ohayon]

Thanks for this @humblehacker !! Welcome to the fastlane community 🚀 !

[fastlane-bot]

Congratulations! 🎉 This was released as part of fastlane 2.57.0 🚀