Add pre-commit with GiHub Action (#56)

* Update pyproject.toml

* add pre-commit

* Create .pre-commit-config.yaml

* Comment out ruff

* Update .pre-commit-config.yaml

* General formatting

* Create format-and-fail.yml

* Update ci.yml

* Add pre-commit to dev dependencies

* Update pyproject.toml

app/shared/schemas.py

@@ -1,7 +1,8 @@
+from datetime import datetime
 from typing import Annotated
+
 from annotated_types import Len
 from pydantic import BaseModel
-from datetime import datetime
 
 
 class SubmitSheet(BaseModel):