Merge pull request #1790 from tnull/2022-10-inbound-user-channel-id-randomization

Randomize `user_channel_id` for inbound channels

diff --cc fuzz/src/full_stack.rs
Simple merge

diff --cc lightning/src/ln/channel.rs
Simple merge

diff --cc lightning/src/ln/channelmanager.rs
Simple merge

diff --cc lightning/src/util/events.rs
Simple merge

diff --cc lightning/src/util/ser.rs
Simple merge

diff --cc lightning/src/util/ser_macros.rs
Simple merge