Bump node-sass from 4.13.0 to 4.13.1

Bumps [node-sass](https://github.com/sass/node-sass) from 4.13.0 to 4.13.1.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/node-sass/compare/v4.13.0...v4.13.1)

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

package.json

@@ -47,7 +47,7 @@
     "kue": "^0.11.6",
     "mini-css-extract-plugin": "^0.9.0",
     "mocha-esm": "^1.1.1",
-    "node-sass": "^4.13.0",
+    "node-sass": "^4.13.1",
     "nodebrainz": "^2.1.1",
     "pg": "^7.17.1",
     "playmusic": "^2.3.0",

yarn.lock

@@ -5574,10 +5574,10 @@ node-releases@^1.1.44:
   dependencies:
     semver "^6.3.0"
 
-node-sass@^4.13.0:
-  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.0.tgz#b647288babdd6a1cb726de4545516b31f90da066"
-  integrity sha512-W1XBrvoJ1dy7VsvTAS5q1V45lREbTlZQqFbiHb3R3OTTCma0XBtuG6xZ6Z4506nR4lmHPTqVRwxT6KgtWC97CA==
+node-sass@^4.13.1:
+  version "4.13.1"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.1.tgz#9db5689696bb2eec2c32b98bfea4c7a2e992d0a3"
+  integrity sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"