config： change lsp_installer config

lua/configs/plugins/packer.lua

@@ -1,7 +1,7 @@
 local fn = vim.fn
 local install_path = fn.stdpath('data') .. '/site/pack/packer/start/packer.nvim'
 if fn.empty(fn.glob(install_path)) > 0 then
-    packer_bootstrap = fn.system({ 'git', 'clone', '--depth', '1', 'https://github.com/wbthomason/packer.nvim',
+    PACKER_BOOTSTRAP = fn.system({ 'git', 'clone', '--depth', '1', 'https://github.com/wbthomason/packer.nvim',
         install_path })
 end
 
@@ -80,15 +80,14 @@ return packer.startup(function(use)
     use { 'rafamadriz/friendly-snippets' } -- Snippets collection
 
     -- LSP
-    use { 'neovim/nvim-lspconfig' -- config = function()
-        --     require('configs.plugins.lsp_installer')
-        -- end
-    }
     use {
         'williamboman/nvim-lsp-installer',
-        config = function()
-            require('configs.plugins.lsp_installer')
-        end
+        {
+            'neovim/nvim-lspconfig',
+            config = function()
+                require('configs.plugins.lsp_installer')
+            end
+        }
     }
     use { 'jose-elias-alvarez/null-ls.nvim',
         config = function()
@@ -172,7 +171,7 @@ return packer.startup(function(use)
     })
     -- Automatically set up your configuration after cloning packer.nvim,
     -- Put this at the end after all plugins
-    if packer_bootstrap then
+    if PACKER_BOOTSTRAP then
         require('packer').sync()
     end
 end)