chore(deps): update dependency postcss to v8.5.28

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
postcss (source)	8.5.23 → 8.5.28

---

Release Notes

postcss/postcss (postcss)

v8.5.28

Compare Source

• Fixes types regression.

v8.5.27

Compare Source

• Fixed removing any comments starting with /*# (by @​dylanpulver).
• Fixed * hack before a comment in Custom Properties (by @​Jaybhade).
• Fixed empty values in the middle of list.comma() (by @​MahinAnowar).
• Fixed whitespace-only values in list.space() (by @​MahinAnowar).
• Fixed rule’s end position on space before semicolon (by @​maximilliangrand).
• Fixed types (by @​romainmenke).
• Fixed Chinese text in deprecation warning (by @​Jesse205).

v8.5.26

Compare Source

• Fixed list.split() regression (by @​lazerg).
• Track symlinks in path protection in source map loading (by @​drengir1).

v8.5.25

Compare Source

• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

v8.5.24

Compare Source

• Preserve the BOM after the processing (by @​hdimer).

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, 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 was generated by Mend Renovate. View the repository job log.