Fix Webhook failures in k8s 1.22+

Kubernetes 1.22 added a new subresource field kubernetes/kubernetes#100970. The knative pkg which is used the webhook had an issue that was resolved here knative/serving#11448.

This change bumps the knative pkg dependency which includes the fix but keeps it pinned on the 0.22 release branch.

fixes vmware-tanzu#214

go.mod

@@ -10,5 +10,5 @@ require (
 	k8s.io/apimachinery v0.19.16
 	k8s.io/client-go v0.19.16
 	k8s.io/code-generator v0.19.16
-	knative.dev/pkg v0.0.0-20210331065221-952fdd90dbb0 // pin to branch release-0.22
+	knative.dev/pkg v0.0.0-20210902173607-983897f9e37f // pin to branch release-0.22
 )

go.sum

@@ -1093,6 +1093,8 @@ knative.dev/hack v0.0.0-20210325223819-b6ab329907d3 h1:km0Rrh0T9/wA2pivQm1hqSPVw
 knative.dev/hack v0.0.0-20210325223819-b6ab329907d3/go.mod h1:PHt8x8yX5Z9pPquBEfIj0X66f8iWkWfR0S/sarACJrI=
 knative.dev/pkg v0.0.0-20210331065221-952fdd90dbb0 h1:z05hcB4br0qz7JdwIoUSTXLTF+7ThuJ+R6NFfXd1Y4Q=
 knative.dev/pkg v0.0.0-20210331065221-952fdd90dbb0/go.mod h1:PD5g8hUCXq6iR3tILjmZeJBvQfXGnHMPKryq54qHJhg=
+knative.dev/pkg v0.0.0-20210902173607-983897f9e37f h1:5XjG0xQQYN/Bw+7vUhLENcDOBQPCVns6v3vJcJ1SXZM=
+knative.dev/pkg v0.0.0-20210902173607-983897f9e37f/go.mod h1:PD5g8hUCXq6iR3tILjmZeJBvQfXGnHMPKryq54qHJhg=
 pgregory.net/rapid v0.3.3/go.mod h1:UYpPVyjFHzYBGHIxLFoupi8vwk6rXNzRY9OMvVxFIOU=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=