Run E2E/integration tests against all supported Kubernetes versions

[czeslavo]

Problem Statement

Currently, in KGO integration and E2E tests, we neither pin to a Kubernetes version nor run a test suite against all supported Kubernetes versions.

This issue aims to make some of our tests run against all of the Kubernetes versions we claim to support (as of now we claim to support all versions with maintenance support in the upstream).

Proposed Solution

Add a test_dependencies.yaml file (similar to the ingress controller's) and run a nightly suite against all the supported Kubernetes versions.

Acceptance Criteria

• A nightly test suite (integration and E2E) is run against all supported Kubernetes versions

[pmalek]

It seems that we already had an intention of doing this a while ago: #194