Update dependencies

vendor/github.com/akutz/memconn/memconn_addr.go

@@ -0,0 +1,25 @@
+package memconn
+
+// Addr represents the address of an in-memory endpoint.
+type Addr struct {
+	// Name is the name of the endpoint.
+	Name string
+
+	network string
+}
+
+// Buffered indicates whether or not the address refers to a buffered
+// network type.
+func (a Addr) Buffered() bool {
+	return a.network == networkMemb
+}
+
+// Network returns the address's network.
+func (a Addr) Network() string {
+	return a.network
+}
+
+// String returns the address's name.
+func (a Addr) String() string {
+	return a.Name
+}