[Network] Investigate mismatched handshake

[saketh-are]

Description

While looking into the flaky test tests/sanity/state_sync_routed.py manytx 115 I observed the following occurrence:

DEBUG handle{handler="bytes" actor="PeerActor" msg_len=388 peer=None}: network: Received handshake from ed25519:5BVKQ5zZKtEUM3AHgj6KAerTpuh3CVZHtAbmVfxLbLhc to       ed25519:Eo9W44tRMwcYcoua11yM7Xfr1DjgR4EWQFM3RU27MEX8 but I am ed25519:7uPenfPWuVryD7CLUC24xUu1VJwjqMaRUNdoqhm1iaCq

A node receives a handshake with a target_peer_id which does not match its own. This is not expected unless the sending peer is malicious. It should be investigated and understood.