fix: add wait tolerance for unit test #5531

Job	Run time
Create snap package	17m 54s
Cluster agent health check	46s
Upgrade path test	17m 25s
Test airgap installation	6m 43s
Test community addons	29m 22s
Test core addons	30m 35s
Security scan	33s
Test core addons upgrade	14m 8s
upload_sarifs_matrix (snap.sarif)	11s
upload_sarifs_matrix (hostpath-provisioner.sarif)	12s
upload_sarifs_matrix (coredns.sarif)	16s
upload_sarifs_matrix (kube-controllers.sarif)	14s
upload_sarifs_matrix (busybox.sarif)	14s
upload_sarifs_matrix (metrics-server.sarif)	16s
upload_sarifs_matrix (node.sarif)	14s
upload_sarifs_matrix (controller.sarif)	12s
upload_sarifs_matrix (pause.sarif)	16s
upload_sarifs_matrix (cni.sarif)	16s
upload_sarifs_matrix (trivy-microk8s-repo-scan--results.sarif)	15s
	2h 0m 2s

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