fix(deps): update module github.com/giantswarm/k8sclient/v7 to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/giantswarm/k8sclient/v7	v7.2.0 -> v8.0.0

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Release Notes

giantswarm/k8sclient (github.com/giantswarm/k8sclient/v7)

v8.0.0

Compare Source

Changed

• Upgrade controller-runtime to v0.19.0
• Update go to v1.22.6
• Upgrade k8s modules to v0.31.1

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[renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 9 additional dependencies were updated

Details:

Package	Change
k8s.io/api	v0.30.3 -> v0.31.1
k8s.io/apiextensions-apiserver	v0.30.3 -> v0.31.1
k8s.io/apimachinery	v0.30.3 -> v0.31.1
k8s.io/client-go	v0.30.3 -> v0.31.1
sigs.k8s.io/controller-runtime	v0.18.5 -> v0.19.0
github.com/cenkalti/backoff/v4	v4.2.1 -> v4.3.0
github.com/giantswarm/backoff	v1.0.0 -> v1.0.1
k8s.io/klog/v2	v2.120.1 -> v2.130.1
k8s.io/utils	v0.0.0-20240310230437-4693a0247e57 -> v0.0.0-20240711033017-18e509b52bc8