npd: switch pull-npd-e2e-test to run on Ubuntu

Author: hakman

config/jobs/kubernetes/node-problem-detector/node-problem-detector-presubmits.yaml

@@ -254,9 +254,9 @@ presubmits:
         - name: ZONE
           value: us-central1-a
         - name: IMAGE_FAMILY
-          value: cos-stable
+          value: pipeline-1-24
         - name: IMAGE_PROJECT
-          value: cos-cloud
+          value: ubuntu-os-gke-cloud
         - name: BOSKOS_PROJECT_TYPE
           value: gce-project
         command: