Upgrade: Bump postcss from 7.0.14 to 7.0.15

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.14 to 7.0.15.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss@7.0.14...7.0.15)

Signed-off-by: dependabot[bot] <support@dependabot.com>

packages/hint-compat-api/package.json

@@ -27,7 +27,7 @@
     "npm-link-check": "^3.0.0",
     "npm-run-all": "^4.1.5",
     "nyc": "^14.1.0",
-    "postcss": "^7.0.14",
+    "postcss": "^7.0.15",
     "rimraf": "^2.6.3",
     "typescript": "^3.4.5"
   },

packages/hint-css-prefix-order/package.json

@@ -8,7 +8,7 @@
   },
   "dependencies": {
     "@hint/utils": "^1.0.0",
-    "postcss": "^7.0.14"
+    "postcss": "^7.0.15"
   },
   "description": "Ensure vendor-prefixed versions of a CSS property are listed before the unprefixed version.",
   "devDependencies": {
@@ -26,7 +26,7 @@
     "npm-link-check": "^3.0.0",
     "npm-run-all": "^4.1.5",
     "nyc": "^14.1.0",
-    "postcss": "^7.0.14",
+    "postcss": "^7.0.15",
     "rimraf": "^2.6.3",
     "typescript": "^3.4.5"
   },

packages/parser-css/package.json

@@ -8,7 +8,7 @@
   },
   "dependencies": {
     "@hint/utils": "^1.0.0",
-    "postcss": "^7.0.14",
+    "postcss": "^7.0.15",
     "postcss-safe-parser": "^4.0.1"
   },
   "description": "webhint parser needed to analyze CSS files",

packages/utils/package.json

@@ -47,7 +47,7 @@
     "mime-db": "1.35.0",
     "npm-run-all": "^4.1.5",
     "nyc": "^14.1.0",
-    "postcss": "^7.0.14",
+    "postcss": "^7.0.15",
     "postcss-safe-parser": "^4.0.1",
     "proxyquire": "2.0.0",
     "rimraf": "^2.6.3",

yarn.lock

@@ -9808,7 +9808,7 @@ postcss@6.0.1:
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
-postcss@7.0.14, postcss@^7.0.0, postcss@^7.0.14, postcss@^7.0.5, postcss@^7.0.6:
+postcss@7.0.14:
   version "7.0.14"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.14.tgz#4527ed6b1ca0d82c53ce5ec1a2041c2346bbd6e5"
   integrity sha512-NsbD6XUUMZvBxtQAJuWDJeeC4QFsmWsfozWxCJPWf3M55K9iu2iMDaKqyoOdTJ1R4usBXuxlVFAIo8rZPQD4Bg==
@@ -9826,6 +9826,15 @@ postcss@^6.0.1:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+postcss@^7.0.0, postcss@^7.0.14, postcss@^7.0.15, postcss@^7.0.5, postcss@^7.0.6:
+  version "7.0.15"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.15.tgz#7f62bfff3437a8d358850792e1daee828e67e959"
+  integrity sha512-+avadY713SyQf0m5np7byFzAFZyhPhXyxwp8OVmdd5mKOxm0VzM2AJkKIgBro7gGVk4kYlCDvBVrSqhU5m8E+w==
+  dependencies:
+    chalk "^2.4.2"
+    source-map "^0.6.1"
+    supports-color "^6.1.0"
+
 prebuild-install@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.0.tgz#58b4d8344e03590990931ee088dd5401b03004c8"