[website] upgrade dependencies

Summary: `yarn upgrade && yarn upgrade-dependencies --interactive`

Reviewed By: martintrojer

Differential Revision: D27468287

fbshipit-source-id: dd40b7b3c

website/package.json

@@ -10,11 +10,11 @@
     "deploy": "docusaurus deploy"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.70",
-    "@docusaurus/preset-classic": "2.0.0-alpha.70",
+    "@docusaurus/core": "2.0.0-alpha.72",
+    "@docusaurus/preset-classic": "2.0.0-alpha.72",
     "classnames": "2.2.6",
-    "react": "17.0.1",
-    "react-dom": "17.0.1",
+    "react": "17.0.2",
+    "react-dom": "17.0.2",
     "react-github-btn": "1.2.0"
   },
   "devDependencies": {