Bump postcss from 8.4.17 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.17 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.17...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -134,7 +134,7 @@
     "node-fetch": "^2.6.7",
     "npm-run-all": "^4.1.5",
     "nyc": "^15.1.0",
-    "postcss": "^8.4.14",
+    "postcss": "^8.4.31",
     "postcss-loader": "^7.0.1",
     "prettier": "^2.7.1",
     "redux-mock-store": "^1.5.4",

yarn.lock

@@ -12675,10 +12675,10 @@ nanoid@^2.1.0:
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-2.1.11.tgz#ec24b8a758d591561531b4176a01e3ab4f0f0280"
   integrity sha512-s/snB+WGm6uwi0WjsZdaVcuf3KJXlfGl2LcxgwkEwJF0D/BWzVWAZW/XY4bFaiR7s0Jk3FPvlnepg1H1b1UwlA==
 
-nanoid@^3.3.1, nanoid@^3.3.4:
-  version "3.3.4"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
-  integrity sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==
+nanoid@^3.3.1, nanoid@^3.3.6:
+  version "3.3.6"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.6.tgz#443380c856d6e9f9824267d960b4236ad583ea4c"
+  integrity sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -14080,12 +14080,12 @@ postcss@^7.0.14, postcss@^7.0.26, postcss@^7.0.32, postcss@^7.0.35, postcss@^7.0
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.2.15, postcss@^8.4.13, postcss@^8.4.14, postcss@^8.4.16, postcss@^8.4.7:
-  version "8.4.17"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.17.tgz#f87863ec7cd353f81f7ab2dec5d67d861bbb1be5"
-  integrity sha512-UNxNOLQydcOFi41yHNMcKRZ39NeXlr8AxGuZJsdub8vIb12fHzcq37DTU/QtbI6WLxNg2gF9Z+8qtRwTj1UI1Q==
+postcss@^8.2.15, postcss@^8.4.13, postcss@^8.4.16, postcss@^8.4.31, postcss@^8.4.7:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
-    nanoid "^3.3.4"
+    nanoid "^3.3.6"
     picocolors "^1.0.0"
     source-map-js "^1.0.2"