remove file_save_data drupal 10

Closes #3404815

modules/salesforce_example/src/EventSubscriber/SalesforceExampleSubscriber.php

@@ -164,13 +164,17 @@ class SalesforceExampleSubscriber implements EventSubscriberInterface {
         $destination = "public://user_picture/profilepic-" . $sf_data->id() . ".jpg";
 
         // Attach the new file id to the user entity.
-        /* var \Drupal\file\FileInterface */
-        if ($file = file_save_data($file_data, $destination, FileSystemInterface::EXISTS_REPLACE)) {
-          $account->user_picture->target_id = $file->id();
-        }
-        else {
-          \Drupal::logger('db')->error('failed to save profile pic for user ' . $account->id());
-        }
+        $file_storage = \Drupal::service('file.storage');
+          // Create a file object.
+          $file = $file_storage->create([
+            'uri' => $destination,
+          ]);
+          if ($file->save($file_data, FileSystemInterface::EXISTS_REPLACE)) {
+            $account->user_picture->target_id = $file->id();
+          }
+          else {
+            \Drupal::logger('db')->error('Failed to save profile pic for user ' . $account->id());
+          }
 
         break;
     }