[ServiceBus] Remove duplicate _session_id references in receiver

[swathipil]

In the _on_attach method, the session_id is being set in 2 places: receiver._session_id and session._session_id.

azure-sdk-for-python/sdk/servicebus/azure-servicebus/azure/servicebus/_common/receiver_mixins.py

Line 174 in b0f1bac

self._session._session_id = self._session_id

One of these should be removed (preferably session._session_id) and the other should be used to replace that reference. (i.e. in BaseSession, update self._session_id to self.receiver_session_id).

[github-actions]

Hi @swathipil, we deeply appreciate your input into this project. Regrettably, this issue has remained unresolved for over 2 years and inactive for 30 days, leading us to the decision to close it. We've implemented this policy to maintain the relevance of our issue queue and facilitate easier navigation for new contributors. If you still believe this topic requires attention, please feel free to create a new issue, referencing this one. Thank you for your understanding and ongoing support.