Bump pug from 3.0.2 to 3.0.3 (#978)

Bumps [pug](https://github.com/pugjs/pug) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/pugjs/pug/releases)
- [Commits](https://github.com/pugjs/pug/compare/pug@3.0.2...pug@3.0.3)

---
updated-dependencies:
- dependency-name: pug
  dependency-type: indirect
...

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