Saving extension attributes

[vacla]

Preconditions

PHP 8.1

Magento Version : 2.4.5-p1 EE

Module Store Locator : 2.1.0
Module Retailer Version : 1.2.9.1

Environment : developer

Third party modules : None

Steps to reproduce

1. Set extension attributes
2. Save a retailer Model

Expected result

1. Extension Attributes are saved

Actual result

1. Extension Attribute data is not saved

[vacla]

For this to work, must also Smile-SA/magento2-module-seller#23 be merged as the missing method causes it to fail.