fix: limit codelens refresh to current buffer (#476)

The behavior of `vim.lsp.codelens.refresh()` had been changed in
https://github.com/neovim/neovim/pull/27253 to refresh all open
buffers.

This changes the function calls to specify the current buffer to
maintain the old behavior.

Fixes https://github.com/ray-x/go.nvim/issues/472.

lua/go/codelens.lua

@@ -53,7 +53,7 @@ function M.refresh()
     return
   end
   if _GO_NVIM_CFG.lsp_codelens == true then
-    vim.lsp.codelens.refresh()
+    vim.lsp.codelens.refresh({ bufnr = 0 })
   else
     log('refresh codelens')
     vim.lsp.codelens.clear()

lua/go/lsp.lua

@@ -39,7 +39,7 @@ local on_attach = function(client, bufnr)
   end
 
   if _GO_NVIM_CFG.lsp_codelens then
-    vim.lsp.codelens.refresh()
+    vim.lsp.codelens.refresh({ bufnr = 0 })
   end
   local keymaps
   if _GO_NVIM_CFG.lsp_keymaps == true then