Revert "Include Kubewarden extension tests"

[jordojordo]

Summary

This reverts commit c4900df.

Occurred changes and/or fixed issues

The kubewarden tests are failing on the pipeline causing all PRs to fail the checks needed to be merged. Reverting the commit that replaced those tests will at the very least allow other PRs to pass while a proper fix can be implemented.

Technical notes summary

Debugging the Kubewarden tests locally shows zero issues.

Areas or cases that should be tested

Areas which could experience regressions

Screenshot/Video

Checklist

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