perf: when reloading plugin specs always use cache

lua/lazy/core/cache.lua

@@ -92,6 +92,10 @@ function M.loader(modname)
   return chunk or error(err)
 end
 
+function M.require(modname)
+  return M.loader(modname)()
+end
+
 function M.idx()
   -- update our loader position if needed
   if package.loaders[M.loader_idx] ~= M.loader then

lua/lazy/core/plugin.lua

@@ -1,6 +1,7 @@
 local Config = require("lazy.core.config")
 local Util = require("lazy.core.util")
 local Handler = require("lazy.core.handler")
+local Cache = require("lazy.core.cache")
 
 local M = {}
 
@@ -217,7 +218,7 @@ function M.spec()
       ---@diagnostic disable-next-line: no-unknown
       package.loaded[modname] = nil
       Util.try(function()
-        spec:normalize(require(modname))
+        spec:normalize(Cache.require(modname))
       end, "Failed to load **" .. modname .. "**")
     end
     local path_plugins = vim.fn.stdpath("config") .. "/lua/" .. Config.spec:gsub("%.", "/")