* Using matrix strategy for e2e on multiple k8s versions
* EndpointSlice version support according to Kubernetes release
* Utility helper for testing various Kubernetes versions
* Avoiding race condition on Capsule installation
The TLS Secret controller needs to wait for the CA one in order to
retrieve the updated one, otherwise it could use a non-stored CA.
* Linting
Minor linting fixes
* Makefile for Docker Image
Providing `make docker-image` to speed-up generation of Docker image