Bump pre-commit from 1.21.0 to 2.0.1 (#261)

Author: dependabot-preview[bot]

requirements/requirements_dev.txt

@@ -8,7 +8,7 @@ flake8-bandit==2.1.2
 flake8-bugbear==20.1.4
 hypothesis==4.53.1
 placebo==0.9.0
-pre-commit==1.21.0
+pre-commit==2.0.1
 pylint==2.4.4
 pytest==5.3.5
 pytest-black==0.3.7