Neens to be fixed with latest Homebrew Latest with Homebrew's 3.2.0 ruby

[JuPlutonic]

HOMEBREW_VERSION: 3.6.18-54-g3e25789
Homebrew Ruby: 2.6.8 => /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.8_1/bin/ruby

which -a ruby (when I removed rbenv from the env it also n/w)

/home/alessio/.rbenv/shims/ruby # 3.2.0
/home/linuxbrew/.linuxbrew/bin/ruby  # 3.2.0
/usr/bin/ruby

brew gem install neovim

==> Fetching gem-neovim
==> Fetching neovim from gem source
`RubyGems' were not loaded.
`error_highlight' was not loaded.
`did_you_mean' was not loaded.
`syntax_suggest' was not loaded.
/home/linuxbrew/.linuxbrew/opt/ruby/bin/gem:8:in `require': cannot load such file -- rubygems/gem_runner (LoadError)
	from /home/linuxbrew/.linuxbrew/opt/ruby/bin/gem:8:in `<main>'
==> Fetching neovim from gem source
`RubyGems' were not loaded.
`error_highlight' was not loaded.
`did_you_mean' was not loaded.
`syntax_suggest' was not loaded.
/home/linuxbrew/.linuxbrew/opt/ruby/bin/gem:8:in `require': cannot load such file -- rubygems/gem_runner (LoadError)
	from /home/linuxbrew/.linuxbrew/opt/ruby/bin/gem:8:in `<main>'
Error: An exception occurred within a child process:
  Errno::ENOENT: No such file or directory @ rb_sysopen - /home/user/.cache/Homebrew/neovim-0.9.0.gem

[JuPlutonic]

This is ruby installation script in Homebrew, which uses for rubygems $HOMEBREW_PREFIX/"lib/ruby/gems/#{api_version}/bin"
and all content is symlinked it to $(brew --prefix ruby)/libexec/"gembin/*"