Auto merge of #3957 - rust-lang:renovate/postcss-8.x, r=hi-rustin

Update dependency postcss to v8.3.8

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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)) | [`8.3.7` -> `8.3.8`](https://renovatebot.com/diffs/npm/postcss/8.3.7/8.3.8) | [![age](https://badges.renovateapi.com/packages/npm/postcss/8.3.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/postcss/8.3.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/postcss/8.3.8/compatibility-slim/8.3.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/postcss/8.3.8/confidence-slim/8.3.7)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v8.3.8`](https://togithub.com/postcss/postcss/blob/master/CHANGELOG.md#&#8203;838)

[Compare Source](https://togithub.com/postcss/postcss/compare/8.3.7...8.3.8)

-   Update `nanocolors`.

</details>

---

### Configuration

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Author: bors

package.json

@@ -127,7 +127,7 @@
     "webpack": "5.53.0"
   },
   "resolutions": {
-    "ember-css-modules/postcss": "8.3.7",
+    "ember-css-modules/postcss": "8.3.8",
     "ember-inflector": "4.0.2"
   },
   "engines": {

yarn.lock

@@ -10918,10 +10918,10 @@ nan@^2.12.1:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
   integrity sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==
 
-nanocolors@^0.1.5:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/nanocolors/-/nanocolors-0.1.6.tgz#bc2350d3edfdbfadd7ac018c855ae7c13905a6ad"
-  integrity sha512-2pvTw6vYRaBLGir2xR7MxaJtyWkrn+C53EpW8yPotG+pdAwBvt0Xwk4VJ6VHLY0aLthVZPvDfm9TdZvrvAm5UQ==
+nanocolors@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/nanocolors/-/nanocolors-0.2.2.tgz#94a4b7e45ecdebdbea7cb0a8349f9447a9677675"
+  integrity sha512-t4mwdKizEGLFeZzDbr1r6SjwKYZQEB0Z/trGsdAIsw5EadaR010/zvJ0arkw6vznyTevcMi9BtppprJ5aqLXRg==
 
 nanoid@^3.1.25:
   version "3.1.25"
@@ -12103,12 +12103,12 @@ postcss-values-parser@^2.0.0, postcss-values-parser@^2.0.1:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss@8.3.7, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
-  version "8.3.7"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.7.tgz#ec88563588c8da8e58e7226f7633b51ae221eeda"
-  integrity sha512-9SaY7nnyQ63/WittqZYAvkkYPyKxchMKH71UDzeTmWuLSvxTRpeEeABZAzlCi55cuGcoFyoV/amX2BdsafQidQ==
+postcss@8.3.8, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
+  version "8.3.8"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.8.tgz#9ebe2a127396b4b4570ae9f7770e7fb83db2bac1"
+  integrity sha512-GT5bTjjZnwDifajzczOC+r3FI3Cu+PgPvrsjhQdRqa2kTJ4968/X9CUce9xttIB0xOs5c6xf0TCWZo/y9lF6bA==
   dependencies:
-    nanocolors "^0.1.5"
+    nanocolors "^0.2.2"
     nanoid "^3.1.25"
     source-map-js "^0.6.2"