chore: Bump @storybook/addon-knobs from 5.2.3 to 5.2.5

Bumps [@storybook/addon-knobs](https://github.com/storybookjs/storybook/tree/HEAD/addons/knobs) from 5.2.3 to 5.2.5.
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Changelog](https://github.com/storybookjs/storybook/blob/next/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/storybook/commits/v5.2.5/addons/knobs)

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