Fixed #15366 use the non-admin edit encrypted custom fields permissions

[snipe]

Fixed #15366, allowing users with the "view/edit encrypted custom fields" permission.

[what-the-diff]

PR Summary

• Updated permission checks in AssetsController
  Changes were made in the AssetsController.php file located in both the app/Http/Controllers/Api/ and app/Http/Controllers/Assets/ directories. The code was updated to check if a user has the permission 'assets.view.encrypted_custom_fields' instead of just checking if the user is an admin, improving security and better role management by allowing more granular access control. This change is reflected at lines 602 and 695 in the former directory and lines 165 and 388 in the latter one.