Bump k8s modules to 0.21.2 (#6184)

aio/scripts/conf.sh

@@ -43,7 +43,7 @@ HEAPSTER_VERSION="v1.5.4"
 HEAPSTER_PORT=8082
 KIND_VERSION="v0.10.0"
 KIND_BIN=${CACHE_DIR}/kind-${KIND_VERSION}
-CODEGEN_VERSION="v0.21.0"
+CODEGEN_VERSION="v0.21.2"
 CODEGEN_BIN=${GOPATH}/pkg/mod/k8s.io/code-generator@${CODEGEN_VERSION}/generate-groups.sh
 
 # Setup logger.

go.mod

@@ -7,16 +7,16 @@ require (
 	github.com/emicklei/go-restful/v3 v3.3.3
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/prometheus/client_golang v1.10.0
+	github.com/prometheus/client_golang v1.11.0
 	github.com/spf13/pflag v1.0.5
-	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
+	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
 	golang.org/x/text v0.3.6
 	gopkg.in/igm/sockjs-go.v2 v2.1.0
 	gopkg.in/square/go-jose.v2 v2.4.1
 	gopkg.in/yaml.v2 v2.4.0
-	k8s.io/api v0.21.0
-	k8s.io/apiextensions-apiserver v0.21.0
-	k8s.io/apimachinery v0.21.0
-	k8s.io/client-go v0.21.0
+	k8s.io/api v0.21.2
+	k8s.io/apiextensions-apiserver v0.21.2
+	k8s.io/apimachinery v0.21.2
+	k8s.io/client-go v0.21.2
 	k8s.io/heapster v1.5.4
 )