Increase buffer size in etcd_watcher

pkg/storage/etcd/etcd_watcher.go

@@ -139,7 +139,9 @@ func newEtcdWatcher(
 		// monitor how much of this buffer is actually used.
 		etcdIncoming: make(chan *etcd.Response, 100),
 		etcdError:    make(chan error, 1),
-		outgoing:     make(chan watch.Event),
+		// Similarly to etcdIncomming, we don't want to force context
+		// switch on every new incoming object.
+		outgoing: make(chan watch.Event, 100),
 		userStop: make(chan struct{}),
 		stopped:  false,
 		wg:       sync.WaitGroup{},