chore(deps): bump pygments from 2.15.0 to 2.20.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.15.0 to 2.20.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.15.0...2.20.0)

---
updated-dependencies:
- dependency-name: pygments
  dependency-version: 2.20.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -29,7 +29,7 @@ Markdown==3.8.1
 django-taggit==1.1.0
 django-taggit-serializer==0.1.7
 mistune==2.0.3
-pygments==2.15.0
+pygments==2.20.0
 celery==5.4.0
 redis==4.4.4
 django-autoslug==1.9.8

requirements.txt

@@ -30,7 +30,7 @@ Markdown==3.8.1
 django-taggit==1.1.0
 django-taggit-serializer==0.1.7
 mistune==2.0.3
-pygments==2.15.0
+pygments==2.20.0
 celery==5.4.0
 redis==4.4.4
 django-autoslug==1.9.8