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>
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

package-lock.json

@@ -3815,9 +3815,9 @@
       }
     },
     "css-loader": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/css-loader/-/css-loader-3.3.2.tgz",
-      "integrity": "sha512-4XSiURS+YEK2fQhmSaM1onnUm0VKWNf6WWBYjkp9YbSDGCBTVZ5XOM6Gkxo8tLgQlzkZOBJvk9trHlDk4gjEYg==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/css-loader/-/css-loader-3.4.0.tgz",
+      "integrity": "sha512-JornYo4RAXl1Mzt0lOSVPmArzAMV3rGY2VuwtaDc732WTWjdwTaeS19nCGWMcSCf305Q396lhhDAJEWWM0SgPQ==",
       "dev": true,
       "requires": {
         "camelcase": "^5.3.1",
@@ -3835,9 +3835,9 @@
       },
       "dependencies": {
         "postcss": {
-          "version": "7.0.24",
-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.24.tgz",
-          "integrity": "sha512-Xl0XvdNWg+CblAXzNvbSOUvgJXwSjmbAKORqyw9V2AlHrm1js2gFw9y3jibBAhpKZi8b5JzJCVh/FyzPsTtgTA==",
+          "version": "7.0.25",
+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.25.tgz",
+          "integrity": "sha512-NXXVvWq9icrm/TgQC0O6YVFi4StfJz46M1iNd/h6B26Nvh/HKI+q4YZtFN/EjcInZliEscO/WL10BXnc1E5nwg==",
           "dev": true,
           "requires": {
             "chalk": "^2.4.2",
@@ -3845,16 +3845,6 @@
             "supports-color": "^6.1.0"
           }
         },
-        "schema-utils": {
-          "version": "2.6.1",
-          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-2.6.1.tgz",
-          "integrity": "sha512-0WXHDs1VDJyo+Zqs9TKLKyD/h7yDpHUhEFsM2CzkICFdoX1av+GBq/J2xRTFfsQO5kBfhZzANf2VcIm84jqDbg==",
-          "dev": true,
-          "requires": {
-            "ajv": "^6.10.2",
-            "ajv-keywords": "^3.4.1"
-          }
-        },
         "supports-color": {
           "version": "6.1.0",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",

package.json

@@ -87,7 +87,7 @@
     "babel-eslint": "^10.0.3",
     "babel-loader": "^8.0.6",
     "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
-    "css-loader": "^3.3.2",
+    "css-loader": "^3.4.0",
     "eslint": "^5.16.0",
     "eslint-config-nextcloud": "0.1.0",
     "eslint-config-standard": "^12.0.0",