Update development dependencies

Author: scriptex

package.json

@@ -43,15 +43,15 @@
 		"node-sass-magic-importer": "^5.1.2",
 		"postcss-easy-import": "^3.0.0",
 		"postcss-flexbugs-fixes": "^3.3.1",
-		"postcss-loader": "^2.1.3",
+		"postcss-loader": "^2.1.5",
 		"postcss-merge-rules": "^2.1.2",
 		"postcss-url": "^7.3.2",
 		"postcss-utilities": "^0.8.0",
 		"postcss-watch-folder": "^0.1.1",
 		"sass-loader": "^7.0.0",
 		"spritesh": "^1.2.1",
 		"style-loader": "^0.21.0",
-		"webpack": "^4.5.0",
+		"webpack": "^4.7.0",
 		"webpack-cli": "^2.1.2",
 		"webpack-shell-plugin": "^0.5.0",
 		"webpack-spritesmith": "^0.4.1"

yarn.lock

@@ -7644,9 +7644,9 @@ postcss-load-plugins@^2.3.0:
     cosmiconfig "^2.1.1"
     object-assign "^4.1.0"
 
-postcss-loader@^2.1.3:
-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.4.tgz#f44a6390e03c84108b2b2063182d1a1011b2ce76"
+postcss-loader@^2.1.5:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.5.tgz#3c6336ee641c8f95138172533ae461a83595e788"
   dependencies:
     loader-utils "^1.1.0"
     postcss "^6.0.0"
@@ -10230,9 +10230,9 @@ webpack-spritesmith@^0.4.1:
     spritesheet-templates "^10.2.2"
     spritesmith "^3.3.0"
 
-webpack@^4.5.0:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.6.0.tgz#363eafa733710eb0ed28c512b2b9b9f5fb01e69b"
+webpack@^4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.7.0.tgz#a04f68dab86d5545fd0277d07ffc44e4078154c9"
   dependencies:
     acorn "^5.0.0"
     acorn-dynamic-import "^3.0.0"