Merge pull request kubernetes#92498 from wojtek-t/bump_etcd_version

Bump etcd revision after changes to migrate script

Author: k8s-ci-robot

cluster/images/etcd/Makefile

@@ -34,7 +34,7 @@ LATEST_ETCD_VERSION?=3.4.9
 # REVISION provides a version number fo this image and all it's bundled
 # artifacts. It should start at zero for each LATEST_ETCD_VERSION and increment
 # for each revision of this image at that etcd version.
-REVISION?=0
+REVISION?=1
 
 # IMAGE_TAG Uniquely identifies k8s.gcr.io/etcd docker image with a tag of the form "<etcd-version>-<revision>".
 IMAGE_TAG=$(LATEST_ETCD_VERSION)-$(REVISION)