sling: update to v4.1.1

[daywalker90]

[4.1.1] - 2025-09-10

Fixed

• Important fix if you have more than one channel with the same peer (see Issue#11): They can choose on which channel to forward sats to you and might not choose the scid from sling's route. This can be counter-productive and lead to pointless back and forth on the same channel while losing sats to fees. sling now checks if the sats arrive on the correct channel and if not fails the rebalance and bans the peer for one hour at which point it will try again. Reported by @whitslack, thank you!

[4.1.0] - 2025-08-26

Added

• sling-deletejob: add an optional boolean argument delete_stats which defaults to false. If set to true it will delete the stats of the job(s) aswell.
• sling-autogo: new option that defaults to false. If set to true it will automatically start all rebalance jobs upon sling startup.

Changed

• raised MSRV to 1.85 since both CLN and debian stable now support it