Bump pug from 2.0.4 to 3.0.1

Bumps [pug](https://github.com/pugjs/pug) from 2.0.4 to 3.0.1.
- [Release notes](https://github.com/pugjs/pug/releases)
- [Commits](https://github.com/pugjs/pug/compare/pug@2.0.4...pug@3.0.1)

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

Author: dependabot[bot]

package.json

@@ -112,7 +112,7 @@
     "optimize-css-assets-webpack-plugin": "^3.2.0",
     "postcss-loader": "^1.0.0",
     "progress-bar-webpack-plugin": "^1.10.0",
-    "pug": "^2.0.0-rc.4",
+    "pug": "^3.0.1",
     "pug-loader": "^2.3.0",
     "purify-css": "^1.2.6",
     "regenerator-runtime": "^0.13.2",