Update dependency webpack-cli to v3.0.7

Author: renovate-bot

fixtures/app/package.json

@@ -12,6 +12,6 @@
   },
   "devDependencies": {
     "webpack": "4.12.0",
-    "webpack-cli": "3.0.3"
+    "webpack-cli": "3.0.7"
   }
 }

worker/package.json

@@ -13,7 +13,7 @@
     "css-to-js-sourcemap-core": "*",
     "resolve-from": "4.0.0",
     "webpack": "4.12.0",
-    "webpack-cli": "3.0.3"
+    "webpack-cli": "3.0.7"
   },
   "license": "MIT"
 }

yarn.lock

@@ -2960,9 +2960,9 @@ watchpack@^1.5.0:
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
 
-webpack-cli@3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.0.3.tgz#1a8c6e09dee1fd45305f3b3828cf081903cee0f2"
+webpack-cli@3.0.7:
+  version "3.0.7"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.0.7.tgz#d4171aa6a52f28d3a40048db3d0764e1c601c029"
   dependencies:
     chalk "^2.4.1"
     cross-spawn "^6.0.5"