Clean up playground happy stacks #52

Job	Run time
Find examples	7s
Clean staging happy stacks (ecs_test_app)	24s
Clean prod happy stacks (ecs_test_app)	26s
Clean staging happy stacks (gpu_app)	58s
Clean rdev happy stacks (ecs_test_app)	23s
Clean prod happy stacks (gpu_app)	56s
Clean staging happy stacks (image_pipeline)	21s
Clean rdev happy stacks (gpu_app)	42s
Clean prod happy stacks (image_pipeline)	24s
Clean staging happy stacks (integration_test)	1m 6s
Clean rdev happy stacks (image_pipeline)	21s
Clean prod happy stacks (integration_test)	59s
Clean staging happy stacks (integration_test_helm)	53s
Clean rdev happy stacks (integration_test)	1m 10s
Clean staging happy stacks (nodejs_downstream)	22s
Clean prod happy stacks (integration_test_helm)	56s
Clean rdev happy stacks (integration_test_helm)	1m 1s
Clean staging happy stacks (sidecar)	22s
Clean prod happy stacks (nodejs_downstream)	24s
Clean rdev happy stacks (nodejs_downstream)	28s
Clean staging happy stacks (sidecar_with_ssl)	20s
Clean rdev happy stacks (sidecar)	28s
Clean prod happy stacks (sidecar)	28s
Clean staging happy stacks (target_group_only)	22s
Clean rdev happy stacks (sidecar_with_ssl)	28s
Clean prod happy stacks (sidecar_with_ssl)	27s
Clean staging happy stacks (tasks)	22s
Clean rdev happy stacks (target_group_only)	28s
Clean prod happy stacks (target_group_only)	24s
Clean staging happy stacks (typical_app)	22s
Clean rdev happy stacks (tasks)	24s
Clean prod happy stacks (tasks)	21s
Clean prod happy stacks (typical_app)	27s
Clean rdev happy stacks (typical_app)	24s
	18m 28s

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