Support all versions on Ubuntu 22.04

Author: eregon

README.md

@@ -39,12 +39,10 @@ The action works on these [GitHub-hosted runners](https://help.github.com/en/act
 
 | Operating System | Recommended | Other Supported Versions |
 | ----------- | -------- | -------- |
-| Ubuntu  | `ubuntu-latest`  (= `ubuntu-20.04`) | `ubuntu-18.04`, `ubuntu-22.04` (beta, only `ruby: 3.1 - head, truffleruby`) |
+| Ubuntu  | `ubuntu-latest`  (= `ubuntu-20.04`) | `ubuntu-18.04`, `ubuntu-22.04` |
 | macOS   | `macos-latest`   (= `macos-11`)  | `macos-10.15`, `macos-12` (beta) |
 | Windows | `windows-latest` (= `windows-2022`) | `windows-2019` |
 
-On `ubuntu-22.04` (beta), only `ruby: 3.1 - head, truffleruby` are supported, due to Ubuntu 22.04 only supporting OpenSSL 3.
-
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
 and on Windows by [RubyInstaller2](https://github.com/oneclick/rubyinstaller2).
 `mingw` and `mswin` builds are generated by [ruby-loco](https://github.com/MSP-Greg/ruby-loco).

dist/index.js

@@ -17,13 +17,6 @@ export function getAvailableVersions(platform, engine) {
     throw new Error(`Unsupported platform ${platform}`)
   }
 
-  if (platform === 'ubuntu-22.04') {
-    const rubyVersions = rubyBuilderVersions['ruby']
-    return {
-      ruby: rubyVersions.slice(rubyVersions.indexOf('3.1.0')),
-    }[engine]
-  }
-
   return rubyBuilderVersions[engine]
 }