Created by: seanpdoyle
Determine the version based on the RUBY_VERSION
set by CI, or the
contents of .ruby-version
.
warning: parser/current is loading parser/ruby26, which recognizes
warning: 2.6.5-compliant syntax, but you are running 2.6.3.
warning: please see https://github.com/whitequark/parser#compatibility-with-ruby-mri.