chore(deps): update storybook monorepo to v7.6.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@storybook/addon-a11y (source)	7.6.7 -> 7.6.8
@storybook/addon-actions (source)	7.6.7 -> 7.6.8
@storybook/addon-essentials (source)	7.6.7 -> 7.6.8
@storybook/addon-links (source)	7.6.7 -> 7.6.8
@storybook/client-api (source)	7.6.7 -> 7.6.8
@storybook/html-vite (source)	7.6.7 -> 7.6.8
storybook (source)	7.6.7 -> 7.6.8

---

Release Notes

storybookjs/storybook (@​storybook/addon-a11y)

### [`v7.6.8`](https://togithub.com/storybookjs/storybook/blob/HEAD/CHANGELOG.md#768) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v7.6.7...v7.6.8) - Addon-actions: Fix module resolution for react-native - [#​25296](https://togithub.com/storybookjs/storybook/pull/25296), thanks [@​dannyhw](https://togithub.com/dannyhw)! - Storysource: Fix import error - [#​25391](https://togithub.com/storybookjs/storybook/pull/25391), thanks [@​unional](https://togithub.com/unional)!

storybookjs/storybook (@​storybook/client-api)

### [`v7.6.8`](https://togithub.com/storybookjs/storybook/compare/v7.6.7...2eded2e062ff7f984706a066090b7c699ee5c71e) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v7.6.7...v7.6.8)

storybookjs/storybook (storybook)

### [`v7.6.8`](https://togithub.com/storybookjs/storybook/compare/v7.6.7...2eded2e062ff7f984706a066090b7c699ee5c71e) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v7.6.7...v7.6.8)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.