Bump pygments from 2.7.1 to 2.15.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.7.1 to 2.15.0. - [Release notes](https://github.com/pygments/pygments/releases) - [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES) - [Commits](pygments/pygments@2.7.1...2.15.0) --- updated-dependencies: - dependency-name: pygments dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -9,7 +9,7 @@ Jinja2==2.11.3
 MarkupSafe==1.1.1
 packaging==20.4
 psutil==5.7.2
-Pygments==2.7.4
+Pygments==2.15.0
 pyparsing==2.4.7
 pytz==2020.1
 requests==2.24.0