Improvements

* Use FastlaneFolder.path instead of fixed './fastlane' (#8393)
* Revise FastlaneCore::FastlaneFolder.path (#8484)
* Detect running Ruby version and fail early (#8525)
* Replace `gem update` with `gem install` per @segiddins' request (#8514)
* Update CONTRIBUTING.md to have information about the Google CLA
* Fix Image File Path for supply (#8513)
* integrate fastlane-plugin-update_project_codesigning (#8417)
* Fix Interface `interactive?` method takes no parameters (#8506)
* Add missing `require` for terminal-table (#8503)
* Update example text to prefix tool commands with 'fastlane' (#8485)
* Add error_callback option to cocoapods action (#8344)
* support JPG icons for metadata in deliver (#8418)
* Fix regression with delete_keychain(name:) (#8467)
* Add "enterprise" reference to the match documentation (#8438)
* Force binary reading/writing when analyzing IPAs (#8455)

https://github.com/fastlane/fastlane/releases/tag/2.20.0
