refactor(neovim): bundled neoclide/neovim client, upgrade to msgpack v3

[fannheyward]

Closes #5610

[codecov]

Codecov Report

❌ Patch coverage is 61.77778% with 344 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.56%. Comparing base (d6db809) to head (2ccdf73).

Files with missing lines	Patch %	Lines
src/neovim/api/Neovim.ts	54.54%	50 Missing and 10 partials ⚠️
src/neovim/api/client.ts	65.49%	28 Missing and 21 partials ⚠️
src/neovim/utils/logger.ts	18.86%	37 Missing and 6 partials ⚠️
src/neovim/api/Buffer.ts	60.20%	21 Missing and 18 partials ⚠️
src/neovim/transport/vim.ts	65.71%	21 Missing and 15 partials ⚠️
src/neovim/transport/connection.ts	64.06%	17 Missing and 6 partials ⚠️
src/neovim/transport/base.ts	60.00%	16 Missing and 4 partials ⚠️
src/neovim/utils/lodash.ts	0.00%	17 Missing ⚠️
src/neovim/api/Window.ts	64.28%	10 Missing and 5 partials ⚠️
src/neovim/transport/nvim.ts	82.75%	8 Missing and 7 partials ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5628      +/-   ##
==========================================
- Coverage   97.80%   96.56%   -1.24%     
==========================================
  Files         278      295      +17     
  Lines       25685    26583     +898     
  Branches     5725     5939     +214     
==========================================
+ Hits        25120    25671     +551     
- Misses        108      355     +247     
- Partials      457      557     +100     

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