Bump pygments from 2.8.1 to 2.9.0 (#899)

Bumps [pygments](https://github.com/pygments/pygments) from 2.8.1 to 2.9.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.8.1...2.9.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: cjolowicz

{{cookiecutter.project_name}}/poetry.lock

@@ -49,7 +49,7 @@ reorder-python-imports = "^2.5.0"
 pre-commit-hooks = "^3.4.0"
 sphinx-rtd-theme = "^0.5.2"
 sphinx-click = "^2.7.1"
-Pygments = "^2.8.1"
+Pygments = "^2.9.0"
 
 [tool.poetry.scripts]
 {{cookiecutter.project_name}} = "{{cookiecutter.package_name}}.__main__:main"