Bump pygments from 2.17.2 to 2.18.0 (#473)

Bumps [pygments](https://github.com/pygments/pygments) from 2.17.2 to 2.18.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.17.2...2.18.0)

---
updated-dependencies:
- dependency-name: pygments
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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