fix(lazy): added error handling for bootstrap (nvim-lua#1001)

lua/lazy-bootstrap.lua

@@ -1,9 +1,12 @@
 -- [[ Install `lazy.nvim` plugin manager ]]
 --    See `:help lazy.nvim.txt` or https://github.com/folke/lazy.nvim for more info
 local lazypath = vim.fn.stdpath 'data' .. '/lazy/lazy.nvim'
-if not vim.uv.fs_stat(lazypath) then
+if not vim.loop.fs_stat(lazypath) then
   local lazyrepo = 'https://github.com/folke/lazy.nvim.git'
-  vim.fn.system { 'git', 'clone', '--filter=blob:none', '--branch=stable', lazyrepo, lazypath }
+  local out = vim.fn.system { 'git', 'clone', '--filter=blob:none', '--branch=stable', lazyrepo, lazypath }
+  if vim.v.shell_error ~= 0 then
+    error('Error cloning lazy.nvim:\n' .. out)
+  end
 end ---@diagnostic disable-next-line: undefined-field
 vim.opt.rtp:prepend(lazypath)