fix: Bust pre-commit cache to resolve types-all issue

Add version suffix to cache key to force invalidation of old cached
pre-commit environments that still reference types-all.

Author: claude

.github/workflows/pre-commit.yml

@@ -24,7 +24,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ~/.cache/pre-commit
-        key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
+        key: pre-commit-v2-${{ hashFiles('.pre-commit-config.yaml') }}
 
     - name: Run pre-commit on all files
       run: pre-commit run --all-files --show-diff-on-failure