Pin new dependency: github.com/google/cel-go v0.9.0

vendor/google.golang.org/grpc/stats/stats.go

@@ -45,6 +45,10 @@ type Begin struct {
 	BeginTime time.Time
 	// FailFast indicates if this RPC is failfast.
 	FailFast bool
+	// IsClientStream indicates whether the RPC is a client streaming RPC.
+	IsClientStream bool
+	// IsServerStream indicates whether the RPC is a server streaming RPC.
+	IsServerStream bool
 }
 
 // IsClient indicates if the stats information is from client side.