Bump antd from 3.26.12 to 4.0.1

Bumps [antd](https://github.com/ant-design/ant-design) from 3.26.12 to 4.0.1.
- [Release notes](https://github.com/ant-design/ant-design/releases)
- [Changelog](https://github.com/ant-design/ant-design/blob/master/CHANGELOG.en-US.md)
- [Commits](ant-design/ant-design@3.26.12...4.0.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -64,7 +64,7 @@
   },
   "devDependencies": {
     "@types/react": "^16.0.0",
-    "antd": "3.x",
+    "antd": "4.x",
     "core-js": "^3.2.1",
     "expect.js": "0.3.x",
     "precommit-hook": "^3.0.0",