chore: Update dependency webpack-cli to ^3.3.9 (#17686)

Author: renovate[bot]

packages/gatsby-graphiql-explorer/package.json

@@ -50,7 +50,7 @@
     "react-dom": "^16.9.0",
     "style-loader": "^0.23.1",
     "webpack": "^4.40.2",
-    "webpack-cli": "^3.3.8",
+    "webpack-cli": "^3.3.9",
     "whatwg-fetch": "^3.0.0"
   },
   "engines": {

yarn.lock

@@ -20013,10 +20013,10 @@ webpack-assets-manifest@^3.1.1:
     tapable "^1.0.0"
     webpack-sources "^1.0.0"
 
-webpack-cli@^3.3.8:
-  version "3.3.8"
-  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.8.tgz#caeaebcc26f685db1736e5decd3f01aac30123ec"
-  integrity sha512-RANYSXwikSWINjHMd/mtesblNSpjpDLoYTBtP99n1RhXqVI/wxN40Auqy42I7y4xrbmRBoA5Zy5E0JSBD5XRhw==
+webpack-cli@^3.3.9:
+  version "3.3.9"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.9.tgz#79c27e71f94b7fe324d594ab64a8e396b9daa91a"
+  integrity sha512-xwnSxWl8nZtBl/AFJCOn9pG7s5CYUYdZxmmukv+fAHLcBIHM36dImfpQg3WfShZXeArkWlf6QRw24Klcsv8a5A==
   dependencies:
     chalk "2.4.2"
     cross-spawn "6.0.5"