e2e tests: use ginkgo.DeferCleanup for consistent resource cleanup #6265

Job	Run time
check-changes	7s
test	8m 43s
e2e-image-router (renderer)	1m 27s
e2e-image-common (builder)	1m 26s
e2e-image-common (simulator)	6s
e2e-image-router (sidecar)	3m 40s
e2e-image-common (epp)	4m 8s
verify-helm-charts	0s
e2e-gaie (metrics)	11m 25s
e2e-gaie (traffic)	7m 29s
e2e-router (pd-shared-storage-deprecated)	4m 50s
e2e-router (pd)	4m 1s
e2e-router (pd-metrics)	6m 53s
e2e-router (extended)	11m 10s
e2e-router (disruption)	4m 8s
e2e-router (pd-shared-storage-disagg)	7m 6s
	1h 16m 39s

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