build(deps): bump postcss, react-scripts, @storybook/addon-storyshots…

… and @storybook/react

Bumps [postcss](https://github.com/postcss/postcss) to 8.4.39 and updates ancestor dependencies [postcss](https://github.com/postcss/postcss), [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts), [@storybook/addon-storyshots](https://github.com/storybookjs/storybook/tree/HEAD/code/addons/storyshots-core) and [@storybook/react](https://github.com/storybookjs/storybook/tree/HEAD/code/renderers/react). These dependencies need to be updated together.


Updates `postcss` from 7.0.36 to 8.4.39
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@7.0.36...8.4.39)

Updates `react-scripts` from 4.0.3 to 5.0.1
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/main/CHANGELOG-4.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@5.0.1/packages/react-scripts)

Updates `@storybook/addon-storyshots` from 6.5.16 to 7.6.17
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Changelog](https://github.com/storybookjs/storybook/blob/v7.6.17/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/storybook/commits/v7.6.17/code/addons/storyshots-core)

Updates `@storybook/react` from 6.5.16 to 8.2.4
- [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/v8.2.4/code/renderers/react)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:production
- dependency-name: "@storybook/addon-storyshots"
  dependency-type: direct:development
- dependency-name: "@storybook/react"
  dependency-type: direct:development
...

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