zebrad has unbounded memory leak in mempool download pipeline via timeout path cancel_handles retention

Am I affected You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node accepts inbound P2P connections network.listenaddr is set, which is the default. 3. Your node's mempool is active node is synced near the chain tip. All default configurations are affected. Summary The...