Update dependency postcss to v8.1.11

package.json

@@ -58,7 +58,7 @@
         "gulp-uglify": "3.0.2",
         "gulp-zip": "5.0.2",
         "inquirer": "7.3.3",
-        "postcss": "8.1.10",
+        "postcss": "8.1.11",
         "postcss-color-mod-function": "3.0.3",
         "postcss-easy-import": "3.0.0",
         "pump": "3.0.0"

yarn.lock

@@ -3187,10 +3187,10 @@ nan@^2.12.1, nan@^2.14.0:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.2.tgz#f5376400695168f4cc694ac9393d0c9585eeea19"
   integrity sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==
 
-nanoid@^3.1.18:
-  version "3.1.18"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.18.tgz#0680db22ab01c372e89209f5d18283d98de3e96d"
-  integrity sha512-rndlDjbbHbcV3xi+R2fpJ+PbGMdfBxz5v1fATIQFq0DP64FsicQdwnKLy47K4kZHdRpmQXtz24eGsxQqamzYTA==
+nanoid@^3.1.20:
+  version "3.1.20"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.20.tgz#badc263c6b1dcf14b71efaa85f6ab4c1d6cfc788"
+  integrity sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -3956,13 +3956,13 @@ postcss-values-parser@^2.0.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss@8.1.10:
-  version "8.1.10"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.10.tgz#129834f94c720554d2cfdaeb27d5542ac4a026ea"
-  integrity sha512-iBXEV5VTTYaRRdxiFYzTtuv2lGMQBExqkZKSzkJe+Fl6rvQrA/49UVGKqB+LG54hpW/TtDBMGds8j33GFNW7pg==
+postcss@8.1.11:
+  version "8.1.11"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.11.tgz#e3bc521cc268107e7be768c76a2f479a08284914"
+  integrity sha512-KxaNGWQHUQLtgobmCKOsKoMX0x2nyQXAH2KYhL0xi4Ygl3y1ETq3exmsyCK84HHhEfvtNk1k3Pq32G3sVtYdTQ==
   dependencies:
     colorette "^1.2.1"
-    nanoid "^3.1.18"
+    nanoid "^3.1.20"
     source-map "^0.6.1"
     vfile-location "^3.2.0"