clnrod: update to v0.5.0

[daywalker90]

Changelog

[0.5.0] - 2025-10-21

Added

• new custom rule variable cln_multi_channel_count to restrict the number of multiple channels per peer
• new boolean option to leak the reason in the reject message: clnrod-leakreason, defaults to false
• method usage returned by lightning-cli help
• defaults for options returned by lightning-cli listconfigs
• clnrod-testping also returns the median ping

Changed

• empty clnrod-denymessage no longer allowed, please let your peer know it's not a lightning bug
• clnrod-testping now connects automatically to the peer
• clnrod-testping length argument now defaults to clnrod-pinglength
• all ping measurements were subtracted by a rpc delay amount but after pings started working properly in 25.09 it turns out this would lead to unrealistically low pings, so i removed that and as a result pings might be slightly higher now

Fixed

• cache invalidation bug: multiple quick (within 1 hour) opening attempts from the same peer with different opening specific data (e.g. different their_funding_sat) would use the oldest value from cache

[0.4.3] - 2025-10-16

Added

• added node alias to all notifications if available

[daywalker90]

rebased on #702 to show it's working