Run encryption tests in a periodic job to detect regression.

As of today the encryption tests are only run when a PR is opened against one of the following repository: kas-o, oas-o or cao. Actually opening a PR is not enough because the encryption CI jobs have defined a filter on specific paths.

There is a risk that breaking changes to operands (i.e. openshift-apiserver) won't be detected. In the worst case scenario we might even release the product with a faulty component (Although I hope that the QA have a list of manual e2e tests they execute before releasing.

To fix the current situation we need to move encryption tests to the origin repository and create a periodic job that would be monitored by the TRT team.