chore(deps): bump pygments from 2.16.1 to 2.18.0 in /docs/main

Bumps [pygments](https://github.com/pygments/pygments) from 2.16.1 to 2.18.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.16.1...2.18.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

docs/main/requirements.txt

@@ -17,7 +17,7 @@ packaging==23.1
 paginate==0.5.6
 pathspec==0.11.2
 platformdirs==3.10.0
-Pygments==2.16.1
+Pygments==2.18.0
 pymdown-extensions==10.3
 python-dateutil==2.8.2
 PyYAML==6.0.1