chore(deps-dev): bump @storybook/addon-knobs from 6.0.26 to 6.2.7

Bumps [@storybook/addon-knobs](https://github.com/storybookjs/storybook/tree/HEAD/addons/knobs) from 6.0.26 to 6.2.7.
- [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/v6.2.7/addons/knobs)

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

Author: dependabot-preview[bot]