[release-1.12] 🐛 Fix WaitForMachinesReady interval

[sbueringer]

Signed-off-by: Stefan Büringer [email protected]

What this PR does / why we need it:
Manual cherry-pick of #13050

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

[fabriziopandini]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 6cce5f2c0ddcfdecd5948d866ac58ce74dbc1854

[sbueringer]

/cherry-pick release-1.11

[k8s-infra-cherrypick-robot]

@sbueringer: once the present PR merges, I will cherry-pick it on top of release-1.11 in a new PR and assign it to you.

In response to this:

/cherry-pick release-1.11

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.

[k8s-infra-cherrypick-robot]

@sbueringer: new pull request created: #13052

In response to this:

/cherry-pick release-1.11

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.