* Upload dSYMs to sentry using swift and the sentry-cli instead of fastlane.
* Replace the fastlane `config_production` lane with a swift tools `ConfigureProduction` command.
* Replace Zsh with CI.run in the new ConfigureNightly command
* Replace the fastlane `tag_nightly` lane with a swift tools `TagNightly` command.
* Print out all the commands going through CI.Run and their arguments
* Address PR comments
* Replace ruby/fastlane unit and preview test flows with swift variants.
* Switch to swift-log and Logger for logging
* Address (my own!) PR comments.
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Co-authored-by: Doug <douglase@element.io>