chore(deps): update pre-commit hook commitizen-tools/commitizen to v4 (#33)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.pre-commit-config.yaml

@@ -61,6 +61,6 @@ repos:
       - id: check-git-config-user-email
         args: [--templates, ^\S+\.\S+@sbb\.ch$]
   - repo: https://github.com/commitizen-tools/commitizen
-    rev: v3.31.0
+    rev: v4.0.0
     hooks:
       - id: commitizen