✨ Bump Kubernetes version used for testing to v1.35.0-beta.0

[sivchari]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Part of #12700

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[sbueringer]

Thx!

Just one small finding

[sbueringer]

Suggested change

	KUBERNETES_VERSION_UPGRADE_FROM: "v1.34.2"
	KUBERNETES_VERSION_UPGRADE_FROM: "v1.34.0"

There is no pre-built kindest/node image for v1.34.2. Let's use v1.34.0 to avoid building a kindest/node v1.34.2 image on every single CI run

[sbueringer]

/test pull-cluster-api-e2e-main-gke

Please trigger ^ again once the finding is fixed

[fabriziopandini]

lgtm as soon as the finding above is addressed

[k8s-ci-robot]

@sivchari: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-e2e-main-gke	50d58f1	link	true	/test pull-cluster-api-e2e-main-gke

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[sbueringer]

@sivchari: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name Commit Details Required Rerun command
pull-cluster-api-e2e-main-gke 50d58f1 link true /test pull-cluster-api-e2e-main-gke
Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

^^ Unrelated flake, has been fixed on main