Bump react-datepicker from 3.5.0 to 3.6.0 in /kafka-ui-react-app (#263)

Bumps [react-datepicker](https://github.com/Hacker0x01/react-datepicker) from 3.5.0 to 3.6.0.
- [Release notes](https://github.com/Hacker0x01/react-datepicker/releases)
- [Commits](https://github.com/Hacker0x01/react-datepicker/compare/v3.5.0...v3.6.0)

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