fix(deps): update dependency stylus-loader to v7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylus-loader	^6.2.0 -> ^7.0.0

---

Release Notes

webpack-contrib/stylus-loader

### [`v7.0.0`](https://togithub.com/webpack-contrib/stylus-loader/blob/HEAD/CHANGELOG.md#​700-httpsgithubcomwebpack-contribstylus-loadercomparev620v700-2022-05-17) [Compare Source](https://togithub.com/webpack-contrib/stylus-loader/compare/v6.2.0...v7.0.0) ##### ⚠ BREAKING CHANGES - minimum supported `Node.js` version is `14.15.0`

---

Configuration

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

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

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

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

---

• [ ] If you want to rebase/retry this PR, click this checkbox.

---

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