chore(deps-dev): bump react from 16.11.0 to 16.12.0

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 16.11.0 to 16.12.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.12.0/packages/react)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -32,7 +32,7 @@
     "postcss-nested": "^4.2.1",
     "prettier": "1.19.1",
     "prop-types": "^15.7.2",
-    "react": "^16.11.0",
+    "react": "^16.12.0",
     "rollup": "^1.31.1",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-bundle-size": "^1.0.3",