Bump pygments from 2.7.4 to 2.8.1 (#294)

Bumps [pygments](https://github.com/pygments/pygments) from 2.7.4 to 2.8.1.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/2.8.1/CHANGES)
- [Commits](pygments/pygments@2.7.4...2.8.1)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

poetry.lock

@@ -45,7 +45,7 @@ darglint = "^1.7.0"
 reorder-python-imports = "^2.4.0"
 pre-commit-hooks = "^3.4.0"
 furo = "^2021.2.28b28"
-Pygments = "^2.7.4"
+Pygments = "^2.8.1"
 poetry = "^1.1.5"
 pytest-datadir = "^1.3.1"
 dataclasses = {version = "^0.8", python = "<3.7"}