Call to deprecated function file_create_url()

Function file_create_url() is deprecated in drupal:9.3.0 and is removed from drupal:10.0.0.

Use file_url_generator service in your service or controller from the container and call its methods.   
 

Before:

$url = file_create_url($uri);

After:

$url = \Drupal::service('file_url_generator')->generateAbsoluteString($uri);