Bump postcss from 8.4.20 to 8.4.31 in /kafka-ui-react-app

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.20 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.4.20...8.4.31)

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

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

kafka-ui-react-app/pnpm-lock.yaml

@@ -5194,8 +5194,8 @@ packages:
     resolution: {integrity: sha512-nnbWWOkoWyUsTjKrhgD0dcz22mdkSnpYqbEjIm2nhwhuxlSkpywJmBo8h0ZqJdkp73mb90SssHkN4rsRaBAfAA==}
     dev: true
 
-  /nanoid@3.3.4:
-    resolution: {integrity: sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==}
+  /nanoid@3.3.6:
+    resolution: {integrity: sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA==}
     engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
     hasBin: true
 
@@ -5550,11 +5550,11 @@ packages:
   /postcss-value-parser@4.1.0:
     resolution: {integrity: sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==}
 
-  /postcss@8.4.20:
-    resolution: {integrity: sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==}
+  /postcss@8.4.31:
+    resolution: {integrity: sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==}
     engines: {node: ^10 || ^12 || >=14}
     dependencies:
-      nanoid: 3.3.4
+      nanoid: 3.3.6
       picocolors: 1.0.0
       source-map-js: 1.0.2
 
@@ -6750,7 +6750,7 @@ packages:
     dependencies:
       '@types/node': 16.11.7
       esbuild: 0.16.4
-      postcss: 8.4.20
+      postcss: 8.4.31
       resolve: 1.22.1
       rollup: 3.7.3
       sass: 1.66.1