hakman: Automated cherry pick of #12062: Update core-dns to v1.8.4

JobBuild
12077
07-30 14:19
pull-kops-bazel-build 1421156036588343296 1421113131609886720
pull-kops-bazel-test 1421156036609314816 1421113131643441152
pull-kops-e2e-kubernetes-aws-1-21 1421156036538011648 1421113131580526592
pull-kops-verify-boilerplate 1421156036672229376 1421113131718938624
pull-kops-verify-generated 1421156036642869248 1421113131685384192
pull-kops-verify-gofmt 1421156036709978112 1421113131760881664
pull-kops-verify-govet 1421156036739338240 1421113131790241792