build: Update dependencies

package.json

@@ -55,7 +55,7 @@
     "fake-style-loader": "^1.0.1",
     "file-loader": "^1.1.8",
     "get-stdin": "^6.0.0",
-    "hard-source-webpack-plugin": "^0.7.0-alpha.0",
+    "hard-source-webpack-plugin": "^0.8.1",
     "html-webpack-plugin": "^3.2.0",
     "inject-loader": "^4.0.1",
     "jsdoc": "^3.5.5",
@@ -68,19 +68,19 @@
     "mocha-webpack": "^2.0.0-beta.0",
     "mochawesome": "^3.0.2",
     "node-sass": "^4.9.0",
-    "nyc": "^11.8.0",
+    "nyc": "^12.0.2",
     "postcss-loader": "^2.1.5",
     "sass-loader": "^7.0.1",
     "selenium-webdriver": "^4.0.0-alpha.1",
     "semantic-release": "^15.5.0",
     "should": "^13.2.1",
     "should-sinon": "0.0.6",
-    "sinon": "^5.0.7",
+    "sinon": "^6.0.0",
     "style-loader": "^0.21.0",
     "stylish": "^1.0.0",
     "webpack": "^4.8.3",
     "webpack-bundle-analyzer": "^2.13.0",
-    "webpack-cli": "^2.1.3",
+    "webpack-cli": "^3.0.8",
     "webpack-dev-server": "^3.1.4",
     "webpack-node-externals": "^1.7.2",
     "webshot": "^0.18.0"