Fix run operator locally

[sdudoladov]

1. Bump up Spilo and operator images
2. Run acid-minimal-cluster in the default namespace, add an option to run it in test
3. Fix the command for starting minikube (caused by changes in its API)
4. Add an option to replace the operator image without restarting the minikube; that greatly speeds up local testing as minikube restarts may take minutes.

[coveralls]

Coverage remained the same at 23.766% when pulling 35803a8 on fix-run-operator-locally into 6f6a599 on master.

[redbaron]

@sdudoladov , just curious what is the difference between spilo-cdp-11 and spilo-11?

[CyberDem0n]

spilo-cdp is build and pushed by ci/cd system on every commit to the master branch.
Later it is tested and if everything is fine we are tagging it as a spilo.

[redbaron]

is spilll-11 aligned with Patroni releases or it is for every commit as well, just after test?