fix(pack): load plugin configs in declared order

lua/pack.lua

@@ -266,8 +266,10 @@ end
 ---@param specs (string | ow.Pack.Spec)[]
 function M.setup(specs)
     local pack_specs = {}
+    local order = {}
     for _, spec in ipairs(specs) do
         local src = type(spec) == "string" and spec or spec.src
+        table.insert(order, src)
         if is_url(src) then
             table.insert(pack_specs, to_pack_spec(spec))
         else
@@ -302,7 +304,9 @@ function M.setup(specs)
         vim.cmd.packadd(plugin.name)
     end)
 
-    for _, plugin in pairs(M.plugins) do
+    for _, src in ipairs(order) do
+        local plugin = M.plugins[src]
+        if plugin then
             if plugin.build then
                 local data = changed[plugin.src]
                 if data then
@@ -312,6 +316,7 @@ function M.setup(specs)
             end
             load(plugin.name, false)
         end
+    end
 
     vim.api.nvim_create_autocmd("PackChanged", {
         group = vim.api.nvim_create_augroup(