Auto merge of #3701 - rust-lang:renovate/postcss-8.x, r=Turbo87

Update dependency postcss to v8.3.4

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [postcss](https://postcss.org/) ([source](https://github.com/postcss/postcss)) | [`8.3.2` -> `8.3.4`](https://renovatebot.com/diffs/npm/postcss/8.3.2/8.3.4) | [![age](https://badges.renovateapi.com/packages/npm/postcss/8.3.4/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/postcss/8.3.4/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/postcss/8.3.4/compatibility-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/postcss/8.3.4/confidence-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>postcss/postcss</summary>

### [`v8.3.4`](https://github.com/postcss/postcss/blob/master/CHANGELOG.md#&#8203;834)

[Compare Source](https://github.com/postcss/postcss/compare/8.3.3...8.3.4)

-   Fixed broken AST detection.

### [`v8.3.3`](https://github.com/postcss/postcss/blob/master/CHANGELOG.md#&#8203;833)

[Compare Source](https://github.com/postcss/postcss/compare/8.3.2...8.3.3)

-   Fixed broken AST on `postcss` dependency duplication in custom parsers.

</details>

---

### Configuration

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

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Author: bors

package.json

@@ -129,7 +129,7 @@
     "webpack": "5.38.1"
   },
   "resolutions": {
-    "ember-css-modules/postcss": "8.3.2",
+    "ember-css-modules/postcss": "8.3.4",
     "ember-inflector": "4.0.2"
   },
   "engines": {

yarn.lock

@@ -12273,10 +12273,10 @@ postcss-values-parser@^2.0.0, postcss-values-parser@^2.0.1:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-[email protected].2, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
-  version "8.3.2"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.2.tgz#ed3ec489f5428af5740cd6effcc216b4d455ee64"
-  integrity sha512-y1FK/AWdZlBF5lusS5j5l4/vF67+vQZt1SXPVJ32y1kRGDQyrs1zk32hG1cInRTu14P0V+orPz+ifwW/7rR4bg==
+[email protected].4, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
+  version "8.3.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.4.tgz#41ece1c43f2f7c74dc7d90144047ce052757b822"
+  integrity sha512-/tZY0PXExXXnNhKv3TOvZAOUYRyuqcCbBm2c17YMDK0PlVII3K7/LKdt3ScHL+hhouddjUWi+1sKDf9xXW+8YA==
   dependencies:
     colorette "^1.2.2"
     nanoid "^3.1.23"