Update dependency postcss to v8.4.32 (#563)

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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)) | [`8.4.31` -> `8.4.32`](https://renovatebot.com/diffs/npm/postcss/8.4.31/8.4.32) | [![age](https://developer.mend.io/api/mc/badges/age/npm/postcss/8.4.32?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/postcss/8.4.32?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/postcss/8.4.31/8.4.32?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/postcss/8.4.31/8.4.32?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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### Release Notes

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

### [`v8.4.32`](https://togithub.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8432)

[Compare Source](https://togithub.com/postcss/postcss/compare/8.4.31...8.4.32)

-   Fixed `postcss().process()` types (by Andrew Ferreira).

</details>

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packages/next/package.json

@@ -80,7 +80,7 @@
     "@next/env": "14.0.3",
     "@swc/helpers": "0.5.3",
     "caniuse-lite": "^1.0.30001406",
-    "postcss": "8.4.31",
+    "postcss": "8.4.32",
     "styled-jsx": "5.1.2"
   },
   "peerDependencies": {