Summary
Upgrade the jool version to v4.1.15
https://github.com/NICMx/Jool/releases
Some improvements and fixes from previous versions:
- Add support for kernels 6.15-6.18
- Add support for Linux 6.12, 6.13, 6.14 and RHEL 9.5
- e8c49da: Allow pool6 with prefix length ≠ 96 on joold
- 80760bb: Stop the userspace client from killing itself when the kernel module sends an unknown stat
- #382, #400: Clean up skb->tstamp during translation to prevent dropped packets.