Log Message:
editors/neovim: Update neovim to version 0.8.2

Changelog:

NVIM 0.8.2

This primarily a bug fix release but some improvements to documentation
has been back-ported as well.

Features
    help: Highlighted codeblocks

Documentation
    lua: Add guide to using Lua in Neovim (#21137)
    Mention how to remove the "How-to disable mouse" menu item
    Fix order of numbers in syntax.txt
    lua: Correct the tags for vim.opt_local and vim.opt_global (#21138)

Bug Fixes
    api: Set correct curbuf when temporarily changing curwin
    api: "emsg_silent" should imply "silent" in nvim_cmd
    decoration: Do not reset must_redraw after calling providers
    diagnostic: Clear stale cache on reset (#21454)
    events: Save v:event for cmdline autocommands separately
    float: Fix ml_get error with bufpos
    float: Fix crash with bufpos and non-existent window
    folds: Use long for number of folded lines
    mappings: Use all buckets in second round of unmap
    memory: Fix memory alignment for dynamic allocation
    options: Fix local 'sidescrolloff' doesn't work for mouse
    options: Restore exists() behavior for options
    terminal: Fix 'mousescroll' not respected in terminal mode
    tui: Set cursor color parameter as string when required
    win_close: Remove float grid after closing buffer

Build System Fixes
    Restrict git describe to top level source directory

NVIM v0.8.2
Build type: Release
LuaJIT 2.1.0-beta3