Move attempt_load_autoload call before post_env definition

- Rearranged the order of operations to call attempt_load_autoload before
  defining post_env. This change ensures that all changes to the Ruby
  environment due to user script execution occur before the build process.

bin/ocran

@@ -204,15 +204,15 @@ module Ocran
   end
 
   def Ocran.build_exe
-    post_env = RuntimeEnvironment.save
-
-    ENV.replace(@pre_env.env)
-
     # If the script was run and autoload is enabled, attempt to autoload libraries.
     if @option.force_autoload?
       attempt_load_autoload(@ignore_modules)
     end
 
+    post_env = RuntimeEnvironment.save
+
+    ENV.replace(@pre_env.env)
+
     # Store the currently loaded files (before we require rbconfig for
     # our own use).
     features = $LOADED_FEATURES.map { |feature| Pathname(feature) }