pre-commit: use exclusion instead of ever-growing regex (#382)

.pre-commit-config.yaml

@@ -1,19 +1,22 @@
 # Note: don't use this config for your own repositories. Instead, see
 # "Version control integration" in README.md.
+exclude: ^(blib2to3/|profiling/|tests/data/)
+repos:
 -   repo: local
     hooks:
     - id: black
       name: black
       language: system
       entry: python3 -m black
-      files: ^(black|setup|tests/test_black|docs/conf)\.py$
+      types: [python]
     - id: flake8
       name: flake8
       language: system
       entry: flake8
-      files: ^(black|setup|tests/test_black)\.py$
+      types: [python]
     - id: mypy
       name: mypy
       language: system
       entry: mypy
-      files: ^(black|setup|tests/test_black)\.py$
+      types: [python]
+      exclude: ^docs/conf.py