release checklist 0.11

[justinmk]

(previous: #23235)

• Release guidelines
• Dependencies

Blocking issues

Pre-release (early)

• run scripts/download-unicode-files.sh
• Bump deps in cmake.deps/deps.txt
  • run scripts/bump_deps.lua (luajit, luv, libuv, treesitter)
  • treesitter parsers (C, Lua, Viml, Vimdoc, Query)
    • update queries from nvim-treesitter
  • lpeg (also in neovim/deps)
  • libvterm (also in neovim/deps)
  • msgpack
  • wintools
• check s930x CI logs for errors pertaining to big-endian systems

Pre-release

• Remove deprecated functions marked for removal (vim.deprecate(…, '0.11'))
• Clean up news.txt (sorting, phrasing)
• Merge nvim.appdata.xml changes from the maintenance branch.
• Run scripts/release.sh

Post-release

• For major releases, create a new release-x.y branch.
  • Bump the version in CMakeLists.txt and set NVIM_VERSION_PRERELEASE.
• Move news.txt to news-x.y.txt (and remove/update tags!). Recreate news.txt with "skeleton" from the old one.
• Review revisit-at-release issues
• Newsletter https://github.com/neovim/neovim.github.io
• Update GitHub Sponsors page (what was done, what is planned)
• Update roadmap
• Remove deprecated:
  • N/A

Merge these after release

• N/A