Bump pygments from 2.14.0 to 2.15.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.14.0 to 2.15.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.14.0...2.15.0)

---
updated-dependencies:
- dependency-name: pygments
  dependency-type: direct:production
...

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

requirements.txt

@@ -21,7 +21,7 @@ mkdocs-material==9.0.12
 mkdocs-material-extensions==1.1.1
 mkdocs-toc-md==0.0.4
 packaging==23.0
-Pygments==2.14.0
+Pygments==2.15.0
 pymdown-extensions==9.9.2
 python-dateutil==2.8.2
 pytz==2022.7.1