fix(@angular-devkit/build-angular): update dependency postcss to v8.4.31

Addresses npm audit report of GHSA-7fh5-64p2-3v2j

Author: alan-agius4

Diff for: package.json

@@ -186,7 +186,7 @@
     "pidusage": "^3.0.0",
     "piscina": "3.2.0",
     "popper.js": "^1.14.1",
-    "postcss": "8.4.16",
+    "postcss": "8.4.31",
     "postcss-import": "15.0.0",
     "postcss-loader": "7.0.1",
     "postcss-preset-env": "7.8.0",

Diff for: packages/angular_devkit/build_angular/package.json

@@ -45,7 +45,7 @@
     "ora": "5.4.1",
     "parse5-html-rewriting-stream": "6.0.1",
     "piscina": "3.2.0",
-    "postcss": "8.4.16",
+    "postcss": "8.4.31",
     "postcss-import": "15.0.0",
     "postcss-loader": "7.0.1",
     "postcss-preset-env": "7.8.0",

Diff for: yarn.lock

@@ -7842,6 +7842,11 @@ nanoid@^3.3.4:
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
   integrity sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==
 
+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==
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -9068,7 +9073,16 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@8.4.16, postcss@^8.2.14, postcss@^8.3.7, postcss@^8.4.14, postcss@^8.4.7, postcss@^8.4.8:
+postcss@8.4.31:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
+  dependencies:
+    nanoid "^3.3.6"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
+postcss@^8.2.14, postcss@^8.3.7, postcss@^8.4.14, postcss@^8.4.7, postcss@^8.4.8:
   version "8.4.16"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.16.tgz#33a1d675fac39941f5f445db0de4db2b6e01d43c"
   integrity sha512-ipHE1XBvKzm5xI7hiHCZJCSugxvsdq2mPnsq5+UF+VHCjiBvtDrlxJfMBToWaP9D5XlgNmcFGqoHmUn0EYEaRQ==