chore(deps): update dependency stylelint to v15.9.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylelint (source)	15.8.0 -> 15.9.0

---

Release Notes

stylelint/stylelint

### [`v15.9.0`](https://togithub.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#​1590) [Compare Source](https://togithub.com/stylelint/stylelint/compare/15.8.0...15.9.0) - Added: `insideFunctions: {"function": int}` to `number-max-precision` ([#​6932](https://togithub.com/stylelint/stylelint/pull/6932)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: `declaration-block-no-redundant-longhand-properties` autofix for `border-radius` shorthand ([#​6958](https://togithub.com/stylelint/stylelint/pull/6958)) ([@​mattxwang](https://togithub.com/mattxwang)). - Fixed: `declaration-block-no-redundant-longhand-properties` autofix for `border-width` shorthand ([#​6956](https://togithub.com/stylelint/stylelint/pull/6956)) ([@​mattxwang](https://togithub.com/mattxwang)). - Fixed: `declaration-block-no-redundant-longhand-properties` autofix for `grid-column` and `grid-row` ([#​6957](https://togithub.com/stylelint/stylelint/pull/6957)) ([@​mattxwang](https://togithub.com/mattxwang)).

---

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, check this box

---

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