Bump react-datetime from 2.16.3 to 3.2.0

Bumps [react-datetime](https://github.com/arqex/react-datetime) from 2.16.3 to 3.2.0.
- [Release notes](https://github.com/arqex/react-datetime/releases)
- [Changelog](https://github.com/arqex/react-datetime/blob/master/CHANGELOG.md)
- [Commits](https://github.com/arqex/react-datetime/commits)

---
updated-dependencies:
- dependency-name: react-datetime
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -48,7 +48,7 @@
     "prismjs": "^1.28.0",
     "prop-types": "^15.7.2",
     "react": "^16.13.1",
-    "react-datetime": "^2.16.3",
+    "react-datetime": "^3.2.0",
     "react-dom": "^16.13.1",
     "react-helmet": "^6.1.0",
     "react-icon": "^1.0.0",