Bump @openapitools/openapi-generator-cli in /kafka-ui-react-app (#414)

Bumps [@openapitools/openapi-generator-cli](https://github.com/OpenAPITools/openapi-generator-cli) from 2.2.5 to 2.2.6.
- [Release notes](https://github.com/OpenAPITools/openapi-generator-cli/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator-cli/blob/master/.releaserc)
- [Commits](OpenAPITools/openapi-generator-cli@v2.2.5...v2.2.6)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>