This PR extracts Ruby and ERB support into an extension and removes the
built-in Ruby and Ruby support from Zed.
As part of this, the new extension is prepared for adding support for
the `Ruby LSP` which has some blockers. See
https://github.com/zed-industries/zed/pull/8613 I was thinking of adding
an initial support for Ruby LSP but I think it would be better to start
with extracting the Ruby extension for now.
The implementation, as the 1st step, matches the bundled version but
with 3 differences:
1. Added signature output to the completion popup. See my comment below.
3. Use the shell environment for starting the `solargraph` executable.
See my comment below.
4. Bumped the tree sitter version for Ruby to the latest available
version.
Additionally, I plan to tweak this extension a bit in the future but I
think we should do this bit by bit. Thanks!
Release Notes:
- Removed built-in support for Ruby, in favor of making it available as
an extension.
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Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
