pin controller-runtime to v0.7.0 to avoid go version bump

Signed-off-by: Joe Lanford <joe.lanford@gmail.com>

Author: joelanford

go.mod

@@ -69,6 +69,9 @@ replace (
 	google.golang.org/grpc => google.golang.org/grpc v1.27.0
 	google.golang.org/grpc/examples => google.golang.org/grpc/examples v0.0.0-20200709232328-d8193ee9cc3e
 
+	// pinned because of/api requires controller-runtime v0.8.0, which requires go1.15
+	sigs.k8s.io/controller-runtime => sigs.k8s.io/controller-runtime v0.7.0
+
 	// pinned because no tag supports 1.18 yet
 	sigs.k8s.io/structured-merge-diff => sigs.k8s.io/structured-merge-diff v1.0.1-0.20191108220359-b1b620dd3f06
 )

go.sum

@@ -1446,7 +1446,7 @@ k8s.io/utils/trace
 # sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.14
 sigs.k8s.io/apiserver-network-proxy/konnectivity-client/pkg/client
 sigs.k8s.io/apiserver-network-proxy/konnectivity-client/proto/client
-# sigs.k8s.io/controller-runtime v0.8.0
+# sigs.k8s.io/controller-runtime v0.8.0 => sigs.k8s.io/controller-runtime v0.7.0
 sigs.k8s.io/controller-runtime
 sigs.k8s.io/controller-runtime/pkg/builder
 sigs.k8s.io/controller-runtime/pkg/cache
@@ -1455,7 +1455,6 @@ sigs.k8s.io/controller-runtime/pkg/client
 sigs.k8s.io/controller-runtime/pkg/client/apiutil
 sigs.k8s.io/controller-runtime/pkg/client/config
 sigs.k8s.io/controller-runtime/pkg/client/fake
-sigs.k8s.io/controller-runtime/pkg/cluster
 sigs.k8s.io/controller-runtime/pkg/config
 sigs.k8s.io/controller-runtime/pkg/config/v1alpha1
 sigs.k8s.io/controller-runtime/pkg/controller