Automatic merge from submit-queue

Set grace period to 0 when deleting namespaces after the test.

Otherwise, we try to run the next test and the pods are still there.
(cherry picked from commit 2bc2cf2)

Automatic merge from submit-queue

Batch update for 1.3

#28030: Revert "Federation e2e supports aws"
#28026: Address outstanding review comments in #27999.
#28034: Adding lock files for kubeconfig updating
#28004: return nil from NewClientConfig instead of empty struct
#28032: Increase pod CPU/memory for fluentd, dns and kube-proxy.
#27208: Bump minimum API version for docker to 1.21
#28061: Remove extra double quotes in --federations.
#28060: rkt: Fix the 'privileged' check when stage1 annotation is provided.
#27996: Image GC logic should compensate for reserved blocks
#28044: rkt: Bump required rkt version to 1.9.1.
#28040: Tracked addition of federation, sed support in kube DNS
#28043: Set grace period to 0 when deleting namespaces after the test.
#28002: Fix startup type error in initializeCaches
#28087: Hotfix: Fixup the hyperkube dns manifest from a breaking federation PR
#28108: Fix initialization of volume controller caches.
#28056: Increase kube-dns requirements on CoreOS.
#28147: Fix error checks after cloning.
#28159: Use : as seccomp security option operator for Docker 1.10
#28165: Refactored, expanded and fixed federated-services e2e tests.
#28095: Kubelet should mark VolumeInUse before checking if it is Attached
#28172: Build: Add KUBE_GCS_RELEASE_BUCKET_MIRROR option to push-ci-build.sh
#28207: Bump cluster autoscaler to 0.2.2
#28160: Volume manager must verify containers terminated before deleting for ungracefully terminated pods
#28211: Fix federation e2e tests by correctly managing cluster clients
#27944: Fix pvc label selector validation error
#28186: federation: Upgrading the groupversion to v1beta1