Build(deps-dev): Bump @storybook/addon-a11y from 6.5.9 to 6.5.10

Bumps [@storybook/addon-a11y](https://github.com/storybookjs/storybook/tree/HEAD/addons/a11y) from 6.5.9 to 6.5.10.
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Changelog](https://github.com/storybookjs/storybook/blob/v6.5.10/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/storybook/commits/v6.5.10/addons/a11y)

---
updated-dependencies:
- dependency-name: "@storybook/addon-a11y"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]