Bump css-loader from 3.3.2 to 3.4.0

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 3.3.2 to 3.4.0.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/css-loader/compare/v3.3.2...v3.4.0)

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

package.json

@@ -256,7 +256,7 @@
     "chalk": "3.0.0",
     "color": "3.1.2",
     "columnify": "1.5.4",
-    "css-loader": "3.3.2",
+    "css-loader": "3.4.0",
     "got": "10.0.4",
     "json-loader": "0.5.7",
     "mousetrap": "chabou/mousetrap#useCapture",

yarn.lock

@@ -2832,10 +2832,10 @@ crypto-random-string@^1.0.0:
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
   integrity sha1-ojD2T1aDEOFJgAmUB5DsmVRbyn4=
 
-css-loader@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-3.3.2.tgz#41b2086528aa4fbf8c0692e874bc14f081129b21"
-  integrity sha512-4XSiURS+YEK2fQhmSaM1onnUm0VKWNf6WWBYjkp9YbSDGCBTVZ5XOM6Gkxo8tLgQlzkZOBJvk9trHlDk4gjEYg==
+css-loader@3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-3.4.0.tgz#9fb263436783117a41d014e45e8eaeba54dd6670"
+  integrity sha512-JornYo4RAXl1Mzt0lOSVPmArzAMV3rGY2VuwtaDc732WTWjdwTaeS19nCGWMcSCf305Q396lhhDAJEWWM0SgPQ==
   dependencies:
     camelcase "^5.3.1"
     cssesc "^3.0.0"