build(deps): update dependency postcss to v8.4.38 (#9060)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [postcss](https://postcss.org/)
([source](https://togithub.com/postcss/postcss)) | [`8.4.32` ->
`8.4.38`](https://renovatebot.com/diffs/npm/postcss/8.4.32/8.4.38) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/postcss/8.4.38?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/postcss/8.4.38?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/postcss/8.4.32/8.4.38?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|

---

### Release Notes

<details>
<summary>postcss/postcss (postcss)</summary>

###
[`v8.4.38`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8438)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.37...8.4.38)

- Fixed `endIndex: 0` in errors and warnings (by
[@&#8203;romainmenke](https://togithub.com/romainmenke)).

###
[`v8.4.37`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8437)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.36...8.4.37)

-   Fixed `original.column are not numbers` error in another case.

###
[`v8.4.36`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8436)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.35...8.4.36)

- Fixed `original.column are not numbers` error on broken previous
source map.

###
[`v8.4.35`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8435)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.34...8.4.35)

-   Avoid `!` in `node.parent.nodes` type.
-   Allow to pass `undefined` to node adding method to simplify types.

###
[`v8.4.34`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8434)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.33...8.4.34)

-   Fixed `AtRule#nodes` type (by Tim Weißenfels).
-   Cleaned up code (by Dmitry Kirillov).

###
[`v8.4.33`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8433)

[Compare
Source](https://togithub.com/postcss/postcss/compare/8.4.32...8.4.33)

- Fixed `NoWorkResult` behavior difference with normal mode (by Romain
Menke).
- Fixed `NoWorkResult` usage conditions (by
[@&#8203;ahmdammarr](https://togithub.com/ahmdammarr)).

</details>

---

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package.json

@@ -91,7 +91,7 @@
     "lerna": "7.4.2",
     "lint-staged": "13.3.0",
     "markdownlint-cli": "0.38.0",
-    "postcss": "8.4.32",
+    "postcss": "8.4.38",
     "prettier": "3.1.1",
     "puppeteer": "21.5.0",
     "quicktype-core": "23.0.115",