Update dependency postcss to v7.0.16

Author: renovate-bot

package.json

@@ -18,7 +18,7 @@
     "cssnano": "4.1.10",
     "del": "4.1.0",
     "htmlnano": "0.2.3",
-    "postcss": "7.0.14",
+    "postcss": "7.0.16",
     "postcss-html": "0.36.0",
     "postcss-load-config": "2.0.0",
     "postcss-preset-env": "6.6.0",

yarn.lock

@@ -3562,10 +3562,10 @@ postcss-values-parser@^2.0.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss@7.0.14, postcss@^7.0.14:
-  version "7.0.14"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.14.tgz#4527ed6b1ca0d82c53ce5ec1a2041c2346bbd6e5"
-  integrity sha512-NsbD6XUUMZvBxtQAJuWDJeeC4QFsmWsfozWxCJPWf3M55K9iu2iMDaKqyoOdTJ1R4usBXuxlVFAIo8rZPQD4Bg==
+postcss@7.0.16:
+  version "7.0.16"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.16.tgz#48f64f1b4b558cb8b52c88987724359acb010da2"
+  integrity sha512-MOo8zNSlIqh22Uaa3drkdIAgUGEL+AD1ESiSdmElLUmE2uVDo1QloiT/IfW9qRw8Gw+Y/w69UVMGwbufMSftxA==
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"
@@ -3589,6 +3589,15 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.2, postcss@^7.0.5, postcss@^7.0.6:
     source-map "^0.6.1"
     supports-color "^5.5.0"
 
+postcss@^7.0.14:
+  version "7.0.14"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.14.tgz#4527ed6b1ca0d82c53ce5ec1a2041c2346bbd6e5"
+  integrity sha512-NsbD6XUUMZvBxtQAJuWDJeeC4QFsmWsfozWxCJPWf3M55K9iu2iMDaKqyoOdTJ1R4usBXuxlVFAIo8rZPQD4Bg==
+  dependencies:
+    chalk "^2.4.2"
+    source-map "^0.6.1"
+    supports-color "^6.1.0"
+
 posthtml-parser@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/posthtml-parser/-/posthtml-parser-0.3.3.tgz#3fe986fca9f00c0f109d731ba590b192f26e776d"