Add D11 compatibility

I have worked on this issue and made this module Drupal 11 compatible.

Before :

After :

Please review.

Thank you.

kul.pratap → changed the visibility of the branch 2.x to hidden.

kul.pratap I verified this for D11. Module is working fine on D11 but I am getting this error after saving node.
Error: Call to undefined method Drupal\file\FileStorage::getTempDirectory() in upload_replace_file_update() (line 66 of /app/web/modules/custom/upload_replace/upload_replace.module).

@shivam_tiwari Fixed the error, Please review.

@kul.pratap Thanks for quick reaction. I checked MR now it is working fine.
I checked it by creating and updating files on the node form. Modules is working fine on D11 setup. Moving it to RTBC.