gha: ci-on-push: Run k8s tests with dragonball

Now that the infra for running dragonball tests has been enabled, let's
actually make sure to have them running on each PR.

The tests skipped are:
* `k8s-cpu-ns.bats`, as CPU resize doesn't seem to be yet properly
  supported on runtime-rs
  * https://github.com/kata-containers/kata-containers/issues/6621

Fixes: #6605

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

tests/integration/kubernetes/run_kubernetes_tests.sh

@@ -54,10 +54,6 @@ else
 	)
 fi
 
-if [ ${KATA_HYPERVISOR} == "dragonball" ]; then
-	exit 0
-fi
-
 # we may need to skip a few test cases when running on non-x86_64 arch
 arch_config_file="${kubernetes_dir}/filter_out_per_arch/${TARGET_ARCH}.yaml"
 if [ -f "${arch_config_file}" ]; then