Update dependencies

Among others, this updates minio-go, so that the new "eu-west-3" zone
for AWS is supported.

vendor/cloud.google.com/go/license_test.go

@@ -25,11 +25,12 @@ import (
 
 var sentinels = []string{
 	"Copyright",
-	"Google Inc",
+	"Google",
 	`Licensed under the Apache License, Version 2.0 (the "License");`,
 }
 
 func TestLicense(t *testing.T) {
+	t.Parallel()
 	err := filepath.Walk(".", func(path string, fi os.FileInfo, err error) error {
 		if err != nil {
 			return err