Update dependency react to v17

Author: renovate-bot

Diff for: package.json

@@ -87,7 +87,7 @@
     "postcss-custom-properties": "8.0.11",
     "postcss-remove-root": "0.0.2",
     "prettier": "2.1.2",
-    "react": "16.13.1",
+    "react": "17.0.0",
     "react-ace": "7.0.5",
     "react-dom": "16.13.1",
     "react-hot-loader": "4.13.0",