🐛 Fix nightly to use consolidated test suite (#795)

The deprecated test/e2e-openshift/ suite was removed in #787.
Switch nightly test_target from test-e2e-openshift to test-e2e-full
which runs the consolidated test/e2e/ suite.

Signed-off-by: Andrew Anderson <andy@clubanderson.com>

Author: clubanderson

.github/workflows/nightly-e2e-cks.yaml

@@ -74,5 +74,5 @@ jobs:
       pod_wait_timeout: '30m'
       pod_readiness_delay: 180
       image_override: 'ghcr.io/llm-d/llm-d-cuda-dev:latest'
-      test_target: test-e2e-openshift
+      test_target: test-e2e-full
     secrets: inherit