Update test certs

[ghost]

This updates the unit test cert (which had expired), changes the unit tests so they share certs instead of each having their own, and has a janitorial commit to update the generated yaml files to match the makefile-specified controller-tools version.

/closes #204

[ghost]

/kind bug

[ghost]

Sorry for closing and reopening, I guess I had a git brainfart.

[ghost]

/priority high

Seems like high priority is justified since the build is broken.

[3scale-robot]

@acnodal-tc: The label(s) priority/high cannot be applied, because the repository doesn't have them.

In response to [this](https://github.com/3scale-ops/marin3r/pull/205#issuecomment-1668649297): >/priority high > >Seems like high priority is justified since the build is broken. > Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[ghost]

/priority important-soon

[roivaz]

/ok-to-test

[roivaz]

/lgtm /approve

[3scale-robot]

LGTM label has been added.

Git tree hash: 1c3fa893eee20ee8cf3ac96a05855947d0317ab2

[3scale-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: roivaz

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