build(deps): bump postcss from 8.4.45 to 8.5.12 in /ui-tests

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.45 to 8.5.12.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.45...8.5.12)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.12
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ui-tests/yarn.lock

@@ -3360,6 +3360,11 @@ ms@^2.1.3:
   resolved "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
+nanoid@^3.3.11:
+  version "3.3.11"
+  resolved "https://registry.npmjs.org/nanoid/-/nanoid-3.3.11.tgz#4f4f112cefbe303202f2199838128936266d185b"
+  integrity sha512-N8SpfPUnUp1bK+PMYW8qSWdl9U+wwNWI4QKxOYDy9JAro3WMX7p2OeVRF9v+347pnakNevPmiHhNmZ2HbFA76w==
+
 nanoid@^3.3.7:
   version "3.3.8"
   resolved "https://registry.npmjs.org/nanoid/-/nanoid-3.3.8.tgz#b1be3030bee36aaff18bacb375e5cce521684baf"
@@ -3422,11 +3427,6 @@ pathe@^2.0.1, pathe@^2.0.3:
   resolved "https://registry.npmjs.org/pathe/-/pathe-2.0.3.tgz#3ecbec55421685b70a9da872b2cff3e1cbed1716"
   integrity sha512-WUjGcAqP1gQacoQe+OBJsFA7Ld4DyXuUIjZ5cc75cLHvJ7dtNsTugphxIADwspS+AraAUePCKrSVtPLFj/F88w==
 
-picocolors@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.npmjs.org/picocolors/-/picocolors-1.1.0.tgz#5358b76a78cde483ba5cef6a9dc9671440b27d59"
-  integrity sha512-TQ92mBOW0l3LeMeyLV6mzy/kWr8lkd/hp3mTg7wYK7zJhuBStmGMBG0BdeDZS/dZx1IukaX6Bk11zcln25o1Aw==
-
 picocolors@^1.1.1:
   version "1.1.1"
   resolved "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz#3d321af3eab939b083c8f929a1d12cda81c26b6b"
@@ -3474,13 +3474,13 @@ points-on-path@^0.2.1:
     points-on-curve "0.2.0"
 
 postcss@^8.3.11:
-  version "8.4.45"
-  resolved "https://registry.npmjs.org/postcss/-/postcss-8.4.45.tgz#538d13d89a16ef71edbf75d895284ae06b79e603"
-  integrity sha512-7KTLTdzdZZYscUc65XmjFiB73vBhBfbPztCYdUNvlaso9PrzjzcmjqBPR0lNGkcVlcO4BjiO5rK/qNz+XAen1Q==
+  version "8.5.12"
+  resolved "https://registry.npmjs.org/postcss/-/postcss-8.5.12.tgz#cd0c0f667f7cb0521e2313234ea6e707a9ec1ddb"
+  integrity sha512-W62t/Se6rA0Az3DfCL0AqJwXuKwBeYg6nOaIgzP+xZ7N5BFCI7DYi1qs6ygUYT6rvfi6t9k65UMLJC+PHZpDAA==
   dependencies:
-    nanoid "^3.3.7"
-    picocolors "^1.0.1"
-    source-map-js "^1.2.0"
+    nanoid "^3.3.11"
+    picocolors "^1.1.1"
+    source-map-js "^1.2.1"
 
 pretty-format@^29.7.0:
   version "29.7.0"
@@ -3658,7 +3658,7 @@ slash@^3.0.0:
   resolved "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
   integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
 
-source-map-js@^1.2.0:
+source-map-js@^1.2.1:
   version "1.2.1"
   resolved "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz#1ce5650fddd87abc099eda37dcff024c2667ae46"
   integrity sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==