[Bug] [apiserver] Flaky integration test for V1

[dentiny]

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• I searched the issues and found no similar issues.

KubeRay Component

apiserver

What happened + What you expected to happen

CI should pass for no-op change PR.

Reproduction script

Failed CI: http://buildkite.com/ray-project/ray-ecosystem-ci-kuberay-ci/builds/9234#0196f2c4-d16a-401e-8b58-b2ce688f13a9
The PR does no functional change: #3594

Anything else

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

[troychiu]

[2025-05-21T12:23:55Z]     cluster_server_autoscaler_e2e_test.go:148:
--
  | [2025-05-21T12:23:55Z]         	Error Trace:	/workdir/apiserver/test/e2e/cluster_server_autoscaler_e2e_test.go:148
  | [2025-05-21T12:23:55Z]         	Error:      	Received unexpected error:
  | [2025-05-21T12:23:55Z]         	            	kuberay api server request failed with HTTP status (500: Internal Server Error)
  | [2025-05-21T12:23:55Z]         	Test:       	TestCreateClusterAutoscaler
  | [2025-05-21T12:23:55Z]         	Messages:   	No error expected
  | [2025-05-21T12:23:55Z] ### FAIL: TestCreateClusterAutoscaler (50.63s)