* Provide a working rebar.cmd for system that need it
(Windows on non-PowerShell)
* Add tests for recent changes
If the "run" were to fail the job would too
* Check if Rust can find it
* Support more OTP+Windows versions (try to bridge the gap with gleam-lang/setup-erlang that seems to support pre-21 versions)
* Merge ci.yml and test.yml
* Add Elixir to the Windows mix
* Hopefully improve error/warning messages
* Adapt the doc.s to the current reality
* Add option version-type (loose by default, for compatibility)