Kombu lacks option to refresh STS token before expiration, causing ExpiredTokenException

[eisichenko]

Linked PR: #2216

During development, I've encountered an issue where Kombu does not currently provide an option to generate an STS token before its expiration time. This can lead to errors such as:

Request HTTP Error HTTP 403 Forbidden (b'{"__type":"com.amazon.coral.service#ExpiredTokenException","message":"The security token included in the request is expired"}')

Such errors occur when the session token expires, which can cause the consumer channel to close when working with Celery.