[lib][p2p] Update device list upon receiving logout message

Summary:
Updated p2p message handler to remove device from device list upon receiving logout message

Depends on D12224

Test Plan:
In addition to test plan from D12224:

• Verified Identity Service logs to see that update_device_list is called
• Verified that DDB contains updated device list without secondary device ID (being a sender of the message handled here)

Reviewers: kamil

Reviewed By: kamil

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D12225