Bump ruby/setup-ruby from 1.258.0 to 1.259.0
Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.258.0 to 1.259.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](https://github.com/ruby/setup-ruby/compare/
3fee6763234110473bd57dd4595c5199fce2c510...
866b91cc020931c510d42e43e498a7f07d335f60)
---
updated-dependencies:
- dependency-name: ruby/setup-ruby
dependency-version: 1.259.0
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>