Deprecation warnings on Kube 1.26+

[Routhinator]

There are a few deprecation warnings that will need to be addressed before kubernetes 1.29+ for this webhook to stay alive:

W1028 23:53:58.493424       1 warnings.go:70] flowcontrol.apiserver.k8s.io/v1beta2 FlowSchema is deprecated in v1.26+, unavailable in v1.29+; use flowcontrol.apiserver.k8s.io/v1beta3 FlowSchema
W1028 23:53:58.493424       1 warnings.go:70] flowcontrol.apiserver.k8s.io/v1beta2 PriorityLevelConfiguration is deprecated in v1.26+, unavailable in v1.29+; use flowcontrol.apiserver.k8s.io/v1beta3 PriorityLevelConfiguration
W1028 23:53:58.500536       1 warnings.go:70] flowcontrol.apiserver.k8s.io/v1beta2 FlowSchema is deprecated in v1.26+, unavailable in v1.29+; use flowcontrol.apiserver.k8s.io/v1beta3 FlowSchema
W1028 23:53:58.500639       1 warnings.go:70] flowcontrol.apiserver.k8s.io/v1beta2 PriorityLevelConfiguration is deprecated in v1.26+, unavailable in v1.29+; use flowcontrol.apiserver.k8s.io/v1beta3 PriorityLevelConfiguration

[diegodambra]

Believe issue arise from the go lib require list? Anyway - seems that Linode forked project and have upgraded the go.mod file!

8ef86e9