Add support for ruby 2.7

[oleander]

No description provided.

[fedejimenez]

Just writing to ask if there is any plan for this to be implemented? It would be really nice to have.

At the moment I tried with ruby 2.7.3.

• bundle install runs ok but then getting errors when trying to start the server:

/home/user/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in "require": cannot load such file -- dry/logic/builder (LoadError)

[oleander]

Officially only ruby 3 is supported. There isn't any good way to get support for 2.7 since part of remap requires ruby 3 only features. I'm sure these features can be removed to allow for backward compatibility but I haven't looked into it.