Bump pygments from 2.7.4 to 2.20.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.7.4 to 2.20.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.7.4...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.txt

@@ -81,7 +81,7 @@ ptyprocess==0.6.0
 py==1.10.0
 pycodestyle==2.6.0
 pycparser==2.20
-Pygments==2.7.4
+Pygments==2.20.0
 pylint==2.5.3
 pymongo==3.11.2
 pyparsing==2.4.7