Use of deprecated API (client.is_stopped).

[s3rius]

Hello. Thanks for making this project.

When running checkhealth vim.deprecated I get this:

==============================================================================
vim.deprecated:                                                           1 ⚠️

 ~
- ⚠️ WARNING client.is_stopped is deprecated. Feature will be removed in Nvim 0.13
  - ADVICE:
    - use client:is_stopped instead.
    - stack traceback:
        ~/.local/share/nvim/site/pack/core/opt/copilot-cmp/lua/copilot_cmp/source.lua:23
        ~/.local/share/nvim/site/pack/core/opt/copilot-cmp/lua/copilot_cmp/init.lua:41
        ~/.local/share/nvim/site/pack/core/opt/copilot-cmp/lua/copilot_cmp/init.lua:56
        [C]:-1
        /usr/share/nvim/runtime/lua/vim/lsp/client.lua:1086
        /usr/share/nvim/runtime/lua/vim/lsp/client.lua:589
        vim/_editor.lua:0