add 5000 node dra test

Signed-off-by: Alay Patel <[email protected]>

Author: alaypatel07

config/jobs/kubernetes/sig-scalability/DRA/sig-scalability-periodic-dra.yaml

@@ -404,4 +404,4 @@ periodics:
             - name: PROMETHEUS_SCRAPE_KUBELETS
               value: "true"
             - name: NODE_PRELOAD_IMAGES
-              value: "gcr.io/k8s-staging-perf-tests/sleep:v0.0.3"
+              value: "gcr.io/k8s-staging-perf-tests/sleep:v0.0.3"