Fix bad pre-commit config (#276)

We replaced all of `repos` key with the last update, this removed all
other repo configurations.

Author: agjohnson

pre-commit-config.yaml

@@ -67,8 +67,7 @@ repos:
     # Run the formatter.
     - id: ruff-format
 
-repos:
-  - repo: https://github.com/errata-ai/vale
-    rev: v3.12.0
-    hooks:
-      - id: vale
+- repo: https://github.com/errata-ai/vale
+  rev: v3.12.0
+  hooks:
+    - id: vale