Fix flaky e2e test and add support for enabling apiserver debug logs during testing

[adriananeci]

Description

There seems to be a race condition inside the apiserver where k8s-shredder is able to evict pods even if the pdb wouldn't allow soft evictions.

Not sure if it is related to the kind cluster or a real issue inside the apiserver codebase.

This PR adds an extra check to make sure that the PDB status associated with the rollout object is properly populated.

This PR also adds support to enabled apiserver debug logs during trubleshooting by using the ENABLE_APISERVER_DEBUG env var.

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[JonnieDoe]

/lgtm

[itaiatu]

/lgtm