chore: remove hatch filter now that click is pinned

Author: zhaotai

.github/workflows/check-regeneration.yml

@@ -41,9 +41,7 @@ jobs:
       uses: astral-sh/setup-uv@v3
 
     - name: Run Python checks
-      # Passing an explicit empty filter avoids Click's sentinel default in newer releases
-      # breaking Hatch's JSON parsing.
-      run: uv run hatch run --filter '{}' all-check
+      run: uv run hatch run all-check
       working-directory: test-proj
 
   check-ui: