build: update postcss to version 8.1.8

Author: renovate-bot

package.json

@@ -188,7 +188,7 @@
     "pidusage": "^2.0.17",
     "pnp-webpack-plugin": "1.6.4",
     "popper.js": "^1.14.1",
-    "postcss": "8.1.7",
+    "postcss": "8.1.8",
     "postcss-import": "13.0.0",
     "postcss-loader": "4.0.4",
     "prettier": "^2.0.0",

packages/angular_devkit/build_angular/package.json

@@ -46,7 +46,7 @@
     "ora": "5.1.0",
     "parse5-html-rewriting-stream": "6.0.1",
     "pnp-webpack-plugin": "1.6.4",
-    "postcss": "8.1.7",
+    "postcss": "8.1.8",
     "postcss-import": "13.0.0",
     "postcss-loader": "4.0.4",
     "raw-loader": "4.0.2",

yarn.lock

@@ -9718,7 +9718,17 @@ [email protected]:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-[email protected], postcss@^8.1.4:
+[email protected]:
+  version "8.1.8"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.8.tgz#697439e7276735ecdd2893d2cf8efb2236693ac3"
+  integrity sha512-hO6jFWBy0QnBBRaw+s0F4hVPKGDICec/nLNEG1D4qqw9/LBzWMkTjckqqELXAo0J42jN8GFZXtgQfezEaoG9gQ==
+  dependencies:
+    colorette "^1.2.1"
+    line-column "^1.0.2"
+    nanoid "^3.1.16"
+    source-map "^0.6.1"
+
+postcss@^8.1.4:
   version "8.1.7"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.7.tgz#ff6a82691bd861f3354fd9b17b2332f88171233f"
   integrity sha512-llCQW1Pz4MOPwbZLmOddGM9eIJ8Bh7SZ2Oj5sxZva77uVaotYDsYTch1WBTNu7fUY0fpWp0fdt7uW40D4sRiiQ==