Update go.mod and vendor

vendor/github.com/docker/go-events/event.go

@@ -1,15 +0,0 @@
-package events
-
-// Event marks items that can be sent as events.
-type Event interface{}
-
-// Sink accepts and sends events.
-type Sink interface {
-	// Write an event to the Sink. If no error is returned, the caller will
-	// assume that all events have been committed to the sink. If an error is
-	// received, the caller may retry sending the event.
-	Write(event Event) error
-
-	// Close the sink, possibly waiting for pending events to flush.
-	Close() error
-}