New test: ensure user-facing options are being propagated to the runtime payloads

[wainersm]

This test is an idea of @fidencio in #239 (comment) , I am just trying to record and put more details in here.

Add a new test case in https://github.com/confidential-containers/operator/blob/main/tests/e2e/operator_tests.bats to ensure the user-facing options are being propagated to the CCRuntime payloads.

Example: the default CCRuntime deployment (https://github.com/confidential-containers/operator/blob/main/config/samples/ccruntime/default/) will pass the runtimeClassNames, defaultRuntimeClassName, and debug parameters to quay.io/confidential-containers/runtime-payload via kustomizations (https://github.com/confidential-containers/operator/blob/main/config/samples/ccruntime/default/kustomization.yaml#L16).

Those parameters are passed via CCInstallConfig (https://github.com/confidential-containers/operator/blob/main/config/crd/bases/confidentialcontainers.org_ccruntimes.yaml#L87). On the runtime-side, properties are passed as environment variables (https://github.com/kata-containers/kata-containers/blob/main/tools/packaging/kata-deploy/kata-deploy/base/kata-deploy.yaml#L27) to the installer script.