update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

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

@@ -58,9 +58,7 @@ type dialOptions struct {
 	callOptions []CallOption
 	// This is used by v1 balancer dial option WithBalancer to support v1
 	// balancer, and also by WithBalancerName dial option.
-	balancerBuilder balancer.Builder
-	// This is to support grpclb.
-	resolverBuilder             resolver.Builder
+	balancerBuilder             balancer.Builder
 	channelzParentID            int64
 	disableServiceConfig        bool
 	disableRetry                bool
@@ -73,6 +71,7 @@ type dialOptions struct {
 	// resolver.ResolveNow(). The user will have no need to configure this, but
 	// we need to be able to configure this in tests.
 	resolveNowBackoff func(int) time.Duration
+	resolvers         []resolver.Builder
 }
 
 // DialOption configures how we set up the connection.
@@ -231,13 +230,6 @@ func WithBalancerName(balancerName string) DialOption {
 	})
 }
 
-// withResolverBuilder is only for grpclb.
-func withResolverBuilder(b resolver.Builder) DialOption {
-	return newFuncDialOption(func(o *dialOptions) {
-		o.resolverBuilder = b
-	})
-}
-
 // WithServiceConfig returns a DialOption which has a channel to read the
 // service configuration.
 //
@@ -365,7 +357,6 @@ func WithContextDialer(f func(context.Context, string) (net.Conn, error)) DialOp
 }
 
 func init() {
-	internal.WithResolverBuilder = withResolverBuilder
 	internal.WithHealthCheckFunc = withHealthCheckFunc
 }
 
@@ -589,3 +580,15 @@ func withResolveNowBackoff(f func(int) time.Duration) DialOption {
 		o.resolveNowBackoff = f
 	})
 }
+
+// WithResolvers allows a list of resolver implementations to be registered
+// locally with the ClientConn without needing to be globally registered via
+// resolver.Register.  They will be matched against the scheme used for the
+// current Dial only, and will take precedence over the global registry.
+//
+// This API is EXPERIMENTAL.
+func WithResolvers(rs ...resolver.Builder) DialOption {
+	return newFuncDialOption(func(o *dialOptions) {
+		o.resolvers = append(o.resolvers, rs...)
+	})
+}