vendor: update all dependencies to latest versions

vendor/cloud.google.com/go/internal/fields/fields_test.go

@@ -22,6 +22,10 @@ import (
 	"strings"
 	"testing"
 	"time"
+
+	"github.com/google/go-cmp/cmp"
+
+	"cloud.google.com/go/internal/testutil"
 )
 
 type embed1 struct {
@@ -142,7 +146,8 @@ func TestAgainstJSONEncodingNoTags(t *testing.T) {
 		t.Fatal(err)
 	}
 	setFields(fields, &got, s1)
-	if !reflect.DeepEqual(got, want) {
+	if !testutil.Equal(got, want,
+		cmp.AllowUnexported(S1{}, embed1{}, embed2{}, embed3{}, embed4{}, embed5{})) {
 		t.Errorf("got\n%+v\nwant\n%+v", got, want)
 	}
 }
@@ -166,7 +171,7 @@ func TestAgainstJSONEncodingEmbeddedTime(t *testing.T) {
 		t.Fatal(err)
 	}
 	setFields(fields, &got, myt)
-	if !reflect.DeepEqual(got, want) {
+	if !testutil.Equal(got, want) {
 		t.Errorf("got\n%+v\nwant\n%+v", got, want)
 	}
 }
@@ -269,7 +274,7 @@ func TestAgainstJSONEncodingWithTags(t *testing.T) {
 		t.Fatal(err)
 	}
 	setFields(fields, &got, s2)
-	if !reflect.DeepEqual(got, want) {
+	if !testutil.Equal(got, want, cmp.AllowUnexported(S2{})) {
 		t.Errorf("got\n%+v\nwant\n%+v", got, want)
 	}
 }
@@ -410,7 +415,7 @@ func compareFields(got []Field, want []*Field) (msg string, ok bool) {
 }
 
 // Need this because Field contains a function, which cannot be compared even
-// by reflect.DeepEqual.
+// by testutil.Equal.
 func fieldsEqual(f1, f2 *Field) bool {
 	if f1 == nil || f2 == nil {
 		return f1 == f2
@@ -418,7 +423,7 @@ func fieldsEqual(f1, f2 *Field) bool {
 	return f1.Name == f2.Name &&
 		f1.NameFromTag == f2.NameFromTag &&
 		f1.Type == f2.Type &&
-		reflect.DeepEqual(f1.ParsedTag, f2.ParsedTag)
+		testutil.Equal(f1.ParsedTag, f2.ParsedTag)
 }
 
 // Set the fields of dst from those of src.