ymlr is optional but locked at ~> 2.0

[thbar]

Hello! The library locks the ymlr version here:

open_api_spex/mix.exs

Line 65 in def1794

{:ymlr, "~> 2.0", optional: true}

but ymlr is now available in v3:

https://github.com/ufirstgroup/ymlr/blob/main/CHANGELOG.md

I wonder if the version constraint could be softened here?

[zorbash]

Sure, can you provide a PR?

[thbar]

@zorbash ready in #502!

[mbuhot]

Fixed in #502, thanks @thbar 👍