Refine exclude

Co-authored-by: Zachary Ware <zachary.ware@gmail.com>

Author: hugovk

.pre-commit-config.yaml

@@ -87,7 +87,7 @@ repos:
         files: '^\.github/CODEOWNERS$'
       - id: mixed-line-ending
         args: [--fix=auto]
-        exclude: ^Lib/test/.*/data/
+        exclude: '^Lib/test/.*data/'
       - id: trailing-whitespace
         types_or: [c, inc, python, rst, yaml]
       - id: trailing-whitespace