setup-ruby-flash v1.6 released!

🏷️ release setup-ruby-flash 🏷️ v1.6

What’s Changed

• 🔊 Debugging more by @pboling in https://github.com/appraisal-rb/setup-ruby-flash/pull/18

Full Changelog: https://github.com/appraisal-rb/setup-ruby-flash/compare/v1.5…v1.6