[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

tests/requirements.txt

@@ -4,7 +4,7 @@ coincidence>=0.2.0
 coverage>=5.1
 coverage-pyver-pragma>=0.2.1
 importlib-metadata>=3.6.0
-pygments>=2.7.4,<=2.18.0
+pygments<=2.18.0,>=2.7.4
 pytest>=6.0.0
 pytest-cov>=2.8.1
 pytest-randomly>=3.7.0