Update Knative dependencies to v0.22

go.mod

@@ -13,6 +13,7 @@ require (
 	k8s.io/api v0.19.7
 	k8s.io/apimachinery v0.19.7
 	k8s.io/client-go v0.19.7
-	knative.dev/eventing v0.21.1
-	knative.dev/pkg v0.0.0-20210308052421-737401c38b22
+	k8s.io/code-generator v0.19.7
+	knative.dev/eventing v0.22.1
+	knative.dev/pkg v0.0.0-20210331062321-6317ec6066f4
 )

hack/tools.go

@@ -0,0 +1,9 @@
+// +build tools
+
+package hack
+
+// These imports ensure build tools are included in Go modules.
+// See https://github.com/golang/go/wiki/Modules#how-can-i-track-tool-dependencies-for-a-module
+import (
+	_ "k8s.io/code-generator"
+)

pkg/apis/routing/v1alpha1/splitter_types.go

@@ -60,9 +60,9 @@ type SplitterSpec struct {
 }
 
 type CloudEventContext struct {
-	Type       string                 `json:"type"`
-	Source     string                 `json:"source"`
-	Extensions map[string]interface{} `json:"extensions"`
+	Type       string            `json:"type"`
+	Source     string            `json:"source"`
+	Extensions map[string]string `json:"extensions"`
 }
 
 // SplitterStatus communicates the observed state of the Splitter (from the controller).