Update storybook monorepo to v6.2.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@storybook/addon-actions	6.2.5 -> 6.2.6
@storybook/addon-essentials	6.2.5 -> 6.2.6
@storybook/addon-links	6.2.5 -> 6.2.6
@storybook/react	6.2.5 -> 6.2.6

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Release Notes

storybookjs/storybook

### [`v6.2.6`](https://togithub.com/storybookjs/storybook/releases/v6.2.6) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v6.2.5...v6.2.6) ##### Bug Fixes - Core: Allow string in object arg and support fractional numbers in URL args ([#​14511](https://togithub.com/storybookjs/storybook/pull/14511)) - UI: Skip duplicate storyId breaking sidebar ([#​14502](https://togithub.com/storybookjs/storybook/pull/14502))

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Configuration

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