K8SPS-387 add wait_for_delete function

[gkech]

CHANGE DESCRIPTION

Problem:
Adding the functionwait_for_delete that is used by create_namespace and is missing because we didn't provide OC support until now.

Note: used the same implementation with the one we have in the PXC operator.

Cause:
Short explanation of the root cause of the issue if applicable.

Solution:
Short explanation of the solution we are providing with this PR.

CHECKLIST

Jira

• Is the Jira ticket created and referenced properly?
• Does the Jira ticket have the proper statuses for documentation (Needs Doc) and QA (Needs QA)?
• Does the Jira ticket link to the proper milestone (Fix Version field)?

Tests

• Is an E2E test/test case added for the new feature/change?
• Are unit tests added where appropriate?

Config/Logging/Testability

• Are all needed new/changed options added to default YAML files?
• Are all needed new/changed options added to the Helm Chart?
• Did we add proper logging messages for operator actions?
• Did we ensure compatibility with the previous version or cluster upgrade process?
• Does the change support oldest and newest supported PS version?
• Does the change support oldest and newest supported Kubernetes version?

[hors]

@gkech we do not have set_debug in PS.

[gkech]

yeap, noticed it in Jenkins as well when executed an OC test to verify this

will remove it