refactor(cmp_luasnip): breaking change use 0.7 autocmd api

Author: saadparwaiz1

Diff for: after/plugin/cmp_luasnip.lua

@@ -1,12 +1,19 @@
 require("cmp").register_source("luasnip", require("cmp_luasnip").new())
 
-vim.api.nvim_exec(
-	[[
-  augroup cmp_luasnip
-    au!
-    autocmd User LuasnipCleanup lua require'cmp_luasnip'.clear_cache()
-    autocmd User LuasnipSnippetsAdded lua require'cmp_luasnip'.refresh()
-  augroup END
-]],
-	false
-)
+local cmp_luasnip = vim.api.nvim_create_augroup("cmp_luasnip", {})
+
+vim.api.nvim_create_autocmd("User", {
+  pattern = "LuasnipCleanup",
+  callback = function ()
+    require("cmp_luasnip").clear_cache()
+  end,
+  group = cmp_luasnip
+})
+
+vim.api.nvim_create_autocmd("User", {
+  pattern = "LuasnipSnippetsAdded",
+  callback = function ()
+    require("cmp_luasnip").refresh()
+  end,
+  group = cmp_luasnip
+})