Unpin Kubernetes dependencies

This doesn't seem to break anything, and helps with go install (see
<golang/go#44840>).

Signed-off-by: Stephen Kitt <skitt@redhat.com>

.github/dependabot.yml

@@ -12,15 +12,15 @@ updates:
       # K8s dependencies must be handled manually
       - dependency-name: k8s.io/api
         versions:
-          - "> 0.17.0"
+          - ">= 0.22.0"
       - dependency-name: k8s.io/apimachinery
         versions:
-          - "> 0.17.0"
+          - ">= 0.22.0"
       - dependency-name: k8s.io/client-go
         versions:
-          - "> 0.17.0"
+          - ">= 0.22.0"
       - dependency-name: sigs.k8s.io/controller-runtime
         versions:
-          - "> 0.3.0"
+          - ">= 0.8.0"
       # Our own dependencies are handled during releases
       - dependency-name: github.com/submariner-io/*

go.mod

@@ -24,20 +24,11 @@ require (
 	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210506160403-92e472f520a5
 	google.golang.org/protobuf v1.27.1
-	k8s.io/api v0.21.0
-	k8s.io/apimachinery v0.21.0
-	k8s.io/client-go v1.5.2
+	k8s.io/api v0.21.7
+	k8s.io/apimachinery v0.21.7
+	k8s.io/client-go v0.21.7
 	k8s.io/klog v1.0.0
-	k8s.io/utils v0.0.0-20210305010621-2afb4311ab10
+	k8s.io/utils v0.0.0-20210521133846-da695404a2bc
 	sigs.k8s.io/controller-runtime v0.7.0
 	sigs.k8s.io/mcs-api v0.1.0
 )
-
-// Pinned to kubernetes-1.19.10
-replace (
-	k8s.io/api => k8s.io/api v0.19.10
-	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.19.10
-	k8s.io/apimachinery => k8s.io/apimachinery v0.19.10
-	k8s.io/client-go => k8s.io/client-go v0.19.10
-	k8s.io/cloud-provider => k8s.io/cloud-provider v0.19.10
-)