fix(deps): update dependency postcss-selector-parser to ^6.0.11

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
postcss-selector-parser	^6.0.10 -> ^6.0.11

---

Release Notes

postcss/postcss-selector-parser

### [`v6.0.11`](https://togithub.com/postcss/postcss-selector-parser/blob/HEAD/CHANGELOG.md#​6011) [Compare Source](https://togithub.com/postcss/postcss-selector-parser/compare/v6.0.10...v6.0.11) - Fixed: parse attribute case insensitivity flag

---

Configuration

📅 Schedule: Branch creation - "before 3am on the first day of the month" in timezone Asia/Tokyo, 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 this update 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.