Update dependency @storybook/addon-essentials to v6.2.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@storybook/addon-essentials	6.2.2 -> 6.2.3

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Release Notes

storybookjs/storybook

### [`v6.2.3`](https://togithub.com/storybookjs/storybook/releases/v6.2.3) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v6.2.2...v6.2.3) ##### Bug Fixes - Core: Fix file-loader options for ESM compat ([#​14480](https://togithub.com/storybookjs/storybook/pull/14480)) - Core: Fix config.js-based configuration ([#​14479](https://togithub.com/storybookjs/storybook/pull/14479)) ##### Maintenance - Core: Disable postcss warning, add main.js `features` setting ([#​14478](https://togithub.com/storybookjs/storybook/pull/14478))

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Configuration

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