fix(healthcheck): migrate to new lua pattern (#1310)

autoload/health/telescope.vim

@@ -1,3 +1,3 @@
 function! health#telescope#check()
-  lua require 'telescope.health'.check_health()
+  lua require 'telescope.health'.check()
 endfunction

lua/telescope/health.lua

@@ -61,7 +61,7 @@ end
 
 local M = {}
 
-M.check_health = function()
+M.check = function()
   -- Required lua libs
   health_start "Checking for required plugins"
   for _, plugin in ipairs(required_plugins) do