Update vendors.

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/stretchr/testify/require/forward_requirements.go

@@ -13,4 +13,4 @@ func New(t TestingT) *Assertions {
 	}
 }
 
-//go:generate go run ../_codegen/main.go -output-package=require -template=require_forward.go.tmpl
+//go:generate go run ../_codegen/main.go -output-package=require -template=require_forward.go.tmpl -include-format-funcs

vendor/github.com/stretchr/testify/require/requirements.go

@@ -6,4 +6,24 @@ type TestingT interface {
 	FailNow()
 }
 
-//go:generate go run ../_codegen/main.go -output-package=require -template=require.go.tmpl
+type tHelper interface {
+	Helper()
+}
+
+// ComparisonAssertionFunc is a common function prototype when comparing two values.  Can be useful
+// for table driven tests.
+type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{})
+
+// ValueAssertionFunc is a common function prototype when validating a single value.  Can be useful
+// for table driven tests.
+type ValueAssertionFunc func(TestingT, interface{}, ...interface{})
+
+// BoolAssertionFunc is a common function prototype when validating a bool value.  Can be useful
+// for table driven tests.
+type BoolAssertionFunc func(TestingT, bool, ...interface{})
+
+// ValuesAssertionFunc is a common function prototype when validating an error value.  Can be useful
+// for table driven tests.
+type ErrorAssertionFunc func(TestingT, error, ...interface{})
+
+//go:generate go run ../_codegen/main.go -output-package=require -template=require.go.tmpl -include-format-funcs