PR raised: https://github.com/mongodb/mongoid/pull/5560

Github Actions suddenly started failing with the below error. It looks like either the setup_ruby/v1 task or the CI dropped support for ubuntu-18.04
 {{Error: Unsupported platform ubuntu-18.04
at Module.getAvailableVersions (/home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:67995:[11](https://github.com/mongodb/mongoid/actions/runs/4297541531/jobs/7490639287#step:4:12))
at setupRuby (/home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:68802:36)
at run (/home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:68771:11)
at /home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:68936:40
at /home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:68938:3
at Object.<anonymous> (/home/runner/work/_actions/ruby/setup-ruby/v1/dist/index.js:68941:[12](https://github.com/mongodb/mongoid/actions/runs/4297541531/jobs/7490639287#step:4:13))
at Module._compile (node:internal/modules/cjs/loader:1105:[14](https://github.com/mongodb/mongoid/actions/runs/4297541531/jobs/7490639287#step:4:15))
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1[15](https://github.com/mongodb/mongoid/actions/runs/4297541531/jobs/7490639287#step:4:16)9:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)}}