Update Kube-router to v2.1.0 to fix ICMPv2 Neighbour Solicitation packets drops

[rbrtbnfgl]

Environmental Info:
K3s Version:

Node(s) CPU architecture, OS, and Version:

Cluster Configuration:

This version update should fix the issue discussed in #9807
Describe the bug:

Steps To Reproduce:

#9807 (reply in thread)

Expected behavior:

Actual behavior:

Additional context / logs:

[endawkins]

Validated on master using commit d973fad | version 1.29

Cluster nodes:
ip-[redacted].us-east-2.compute.internal   Ready   control-plane,etcd,master   31s   v1.29.4-rc1+k3s1   [redacted]   [redacted]   Ubuntu 22.04.1 LTS   5.15.0-1019-aws   containerd://1.7.15-k3s1

journalctl -u k3s.service | grep "Starting network policy controller version"
Apr 17 17:57:34 ip-[redacted] k3s[1992]: time="2024-04-17T17:57:34Z" level=info msg="Starting network policy controller version v2.1.0, built on 2024-04-16T23:18:20Z, go1.21.9"
Apr 17 18:01:08 ip-[redacted] k3s[8767]: time="2024-04-17T18:01:08Z" level=info msg="Starting network policy controller version v2.1.0, built on 2024-04-16T23:18:20Z, go1.21.9"