lock styled-components version to 4.3.2

Author: HsiaoFuChien

redocs/templates/redocs/index.html

@@ -3,7 +3,7 @@
         <script crossorigin src="https://unpkg.com/react@16/umd/react.production.min.js"></script>
         <script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script>
         <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
-        <script src="https://unpkg.com/styled-components/dist/styled-components.min.js"></script>
+        <script src="https://unpkg.com/styled-components@4.3.2/dist/styled-components.min.js"></script>
         <script src="https://unpkg.com/[email protected]/dist/main.js"></script>
         <script defer src="https://use.fontawesome.com/releases/v5.0.13/js/all.js" integrity="sha384-xymdQtn1n3lH2wcu0qhcdaOpQwyoarkgLVxC/wZ5q7h9gHtxICrpcaSUfygqZGOe" crossorigin="anonymous"></script>
         <link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Lato">