Fix test for corev1.LoadBalancerIngress,add IP model to VIP when ip is setting.

[liangyuanpeng]

What type of PR is this?

/kind failing-test
What this PR does / why we need it:

since kubernetes 1.30 begin set IPMode of LoadBalancer service to VIP by default if IP is setting, So we need to set the IPMode to VIP for test.
check failing tests: https://github.com/karmada-io/karmada/actions/runs/9734577204/job/26862785337

check the kubernetes side: https://github.com/kubernetes/kubernetes/blob/d27e3462baa419532209a7515bd24de36b2a5020/pkg/apis/core/v1/defaults.go#L147-L151

also can check the reproduce workflow: https://github.com/karmada-io/karmada/actions/runs/9804835683/job/27073502218?pr=5141

just change the karmada-apiserver to v1.30.0 for reproduce it.

and i open a PR #5142 to adding the master branch to run karmada-apiserver compatibility workflow, So that we can find karmada-apiserver compatibility issues on the master branch.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

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@@            Coverage Diff             @@
##           master    #5141      +/-   ##
==========================================
- Coverage   28.22%   28.22%   -0.01%     
==========================================
  Files         632      632              
  Lines       43553    43553              
==========================================
- Hits        12293    12291       -2     
- Misses      30364    30365       +1     
- Partials      896      897       +1     

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[zhzhuang-zju]

and i open a PR #5142 to adding the master branch to run karmada-apiserver compatibility workflow, So that we can find karmada-apiserver compatibility issues on the master branch.

Support, so that incompatibilities can be detected as early as possible

[zhzhuang-zju]

That's weird, workflow e2e test(v1.30.0) fails too.

[liangyuanpeng]

Update the test for it, the feature gate LoadBalancerIPMode is beta at v1.30, see https://github.com/kubernetes/kubernetes/blob/95debfb5b6dcfa2467f2700d81df6767a2c91bac/pkg/features/kube_features.go#L903-L908

[zhzhuang-zju]

@liangyuanpeng This change may need to be synchronized to release-1.10. Can you remind me why release-1.8 and release-1.9 are seems not affected? Refer to https://github.com/karmada-io/karmada/actions/runs/9734577204/job/26862785337, e2e test(release-1.8) and e2e test(release-1.9) all succeeded.

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[liangyuanpeng]

This change may need to be synchronized to release-1.10.

Yes

Can you remind me why release-1.8 and release-1.9 are seems not affected?

@zhzhuang-zju
This field (IPMode) is added in Kubernetes 1.29, it's mean client-go requires 0.29 k8s deps to see this field. the karmada 1.10 k8s deps version is v0.29.4 , so the service object have field of IPMode, and then test failed.

[zhzhuang-zju]

@zhzhuang-zju This field (IPMode) is added in Kubernetes 1.29, it's mean client-go requires 0.29 k8s deps to see this field. the karmada 1.10 k8s deps version is v0.29.4 , so the service object have field of IPMode, and then test failed.

thanks, get it~