Bump pygments from 2.10.0 to 2.15.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.10.0 to 2.15.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.10.0...2.15.0)

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

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

requirements-dev.txt

@@ -11,7 +11,7 @@ pyroma==3.2
 click==8.0.3
 cookiecutter==1.7.3
 doc8==0.10.1
-Pygments==2.10.0
+Pygments==2.15.0
 twine==3.7.1
 pep517==0.12.0
 setuptools_scm_git_archive==1.4