Bump postcss-simple-vars from 4.0.0 to 5.0.1 (#7)

Bumps [postcss-simple-vars](https://github.com/postcss/postcss-simple-vars) from 4.0.0 to 5.0.1.
- [Release notes](https://github.com/postcss/postcss-simple-vars/releases)
- [Changelog](https://github.com/postcss/postcss-simple-vars/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss-simple-vars@4.0.0...5.0.1)

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

package.json

@@ -59,7 +59,7 @@
     "postcss-import": "10.0.0",
     "postcss-loader": "2.0.6",
     "postcss-nested": "2.1.0",
-    "postcss-simple-vars": "4.0.0",
+    "postcss-simple-vars": "5.0.1",
     "react-hot-loader": "3.0.0-beta.6",
     "style-loader": "^0.18.2",
     "url-loader": "^0.5.8",

yarn.lock

@@ -228,6 +228,12 @@ ansi-styles@^3.1.0:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  dependencies:
+    color-convert "^1.9.0"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -1444,6 +1450,14 @@ chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
+chalk@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
 change-emitter@^0.1.2:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/change-emitter/-/change-emitter-0.1.6.tgz#e8b2fe3d7f1ab7d69a32199aff91ea6931409515"
@@ -2854,6 +2868,10 @@ has-flag@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
 
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -4430,11 +4448,11 @@ postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2, postcss-selector
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss-simple-vars@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-simple-vars/-/postcss-simple-vars-4.0.0.tgz#d49e082897d9a4824f2268fa91d969d943e2ea76"
+postcss-simple-vars@5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-simple-vars/-/postcss-simple-vars-5.0.1.tgz#850971fdfedf236ea1c815569ce261dab8623aa2"
   dependencies:
-    postcss "^6.0.1"
+    postcss "^7.0.2"
 
 postcss-svgo@^2.1.1:
   version "2.1.6"
@@ -4482,6 +4500,14 @@ postcss@^6.0.1, postcss@^6.0.2, postcss@^6.0.8:
     source-map "^0.6.1"
     supports-color "^5.1.0"
 
+postcss@^7.0.2:
+  version "7.0.5"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.5.tgz#70e6443e36a6d520b0fd4e7593fcca3635ee9f55"
+  dependencies:
+    chalk "^2.4.1"
+    source-map "^0.6.1"
+    supports-color "^5.5.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -5521,6 +5547,12 @@ supports-color@^5.1.0:
   dependencies:
     has-flag "^2.0.0"
 
+supports-color@^5.3.0, supports-color@^5.5.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  dependencies:
+    has-flag "^3.0.0"
+
 svgo@^0.7.0:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"