🌱 Fix TestReconcileMachinePhases flake

[ivelichkovich]

What this PR does / why we need it: Mitigates flaking test

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 #12785

This adds CreateAndWait on machine creation in the TestReconcileMachinePhases envtests. Also adds a DeleteAndWait function for the test that runs the delete to check machine phase.

[k8s-ci-robot]

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[sbueringer]

Thank you!

/ok-to-test

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 8436ab7a222e8cb940da81bcea8a38fe416fd30d

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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