feature: support for ruff_lsp

[dhruvinsh]

Did you check the docs?

• I have read all the neoconf.nvim docs

Is your feature request related to a problem? Please describe.

Can we please add spec for ruff_lsp.

Describe the solution you'd like

ruff_lsp has a spec located here:
https://raw.githubusercontent.com/astral-sh/ruff-vscode/main/package.json

From the basic understanding I can see packages being fetched form the gist, but gist is not being maintain any longer.

function M.update_index()
  local url = "https://gist.githubusercontent.com/williamboman/a01c3ce1884d4b57cc93422e7eae7702/raw/lsp-packages.json"
  local index = Util.fetch(url)
  Util.write_file("schemas/index.json", index)
end

Describe alternatives you've considered

NA

Additional context

No response