Bump webpack from 4.41.1 to 4.41.2 in /slides (#238)

Bumps [webpack](https://github.com/webpack/webpack) from 4.41.1 to 4.41.2.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.41.1...v4.41.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

slides/package-lock.json

@@ -16,7 +16,7 @@
     "mini-css-extract-plugin": "^0.8.0",
     "pug": "^2.0.4",
     "pug-loader": "^2.4.0",
-    "webpack": "^4.41.1",
+    "webpack": "^4.41.2",
     "webpack-cli": "^3.3.9"
   },
   "scripts": {