replace cmp_nvim_lsp deprecated methods

cmp_nvim_lsp.update_capabilities is deprecated, use cmp_nvim_lsp.default_capabilities instead.

init.lua

@@ -302,7 +302,7 @@ local on_attach = function(_, bufnr)
 end
 
 -- nvim-cmp supports additional completion capabilities
-local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
 
 -- Setup mason so it can manage external tooling
 require('mason').setup()