docs: update vimdocs

Author: github-actions[bot]

doc/copilot.txt

@@ -161,7 +161,7 @@ Default configuration ~
         file = vim.fn.stdpath("log") .. "/copilot-lua.log",
         file_log_level = vim.log.levels.OFF,
         print_log_level = vim.log.levels.WARN,
-        trace_lsp = "off", -- "off" | "messages" | "verbose"
+        trace_lsp = "off", -- "off" | "debug" | "verbose"
         trace_lsp_progress = false,
         log_lsp_messages = false,
       },