Reimplement wait-for-object-creation with kubectl wait

[mflendrich]

As of kubectl 1.31, there's a kubectl wait --for=create.

This should make the below excerpt of the E2E test logs less chatty and not unnecessarily highlighted as a test error.

 + wait-for-object-creation ci-clusters configmap/13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config
+ for i in {1..30}
+ kubectl -n ci-clusters get configmap/13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config
Error from server (NotFound): configmaps "13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config" not found
+ sleep 1
+ for i in {1..30}
+ kubectl -n ci-clusters get configmap/13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config
Error from server (NotFound): configmaps "13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config" not found
+ sleep 1
+ for i in {1..30}
+ kubectl -n ci-clusters get configmap/13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config
NAME                                                            DATA   AGE
13ede74d-0b97-4590-b6d0-264cda6ca74d-openshift-install-config   1      1s
+ break 

I picked the 60s timeout value because the existing implementation does 30 retries with sleep 1. The extra 30s is to approximate the total current kubectl get latency.

[scylla-operator-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[mflendrich]

/test all

[mflendrich]

/kind cleanup
/priority important-longerm
/cc zimnx grzywin

[scylla-operator-bot]

@mflendrich: The label(s) priority/important-longerm cannot be applied, because the repository doesn't have them.

In response to this:

/kind cleanup
/priority important-longerm
/cc zimnx grzywin

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[zimnx]

/lgtm

[scylla-operator-bot]

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