Bump pug from 2.0.0-rc.2 to 3.0.1

Bumps [pug](https://github.com/pugjs/pug) from 2.0.0-rc.2 to 3.0.1.
- [Release notes](https://github.com/pugjs/pug/releases)
- [Commits](https://github.com/pugjs/pug/compare/pug@2.0.0-rc.2...pug@3.0.1)

---
updated-dependencies:
- dependency-name: pug
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -79,7 +79,7 @@
     "passport-saml": "^0.15.0",
     "protobufjs": "^3.8.2",
     "proxy-addr": "^2.0.7",
-    "pug": "^2.0.0-beta4",
+    "pug": "^3.0.2",
     "request": "^2.67.0",
     "request-progress": "^2.0.1",
     "rethinkdb": "^2.0.2",