Format additional dependencies in pre-commit config (#209)

Author: mxr

.pre-commit-config.yaml

@@ -46,5 +46,8 @@ repos:
   rev: v1.20.2
   hooks:
   - id: mypy
-    additional_dependencies: [aiopathlib, asyncio-for-ynab, rich>=12]
+    additional_dependencies:
+    - aiopathlib
+    - asyncio-for-ynab
+    - rich>=12
     language_version: python3.12