Supporting store_true=True

[TheCodingLand]

Hello,

I have an app that is now widely deployed and using the previous version of pydantic-cli.

In the versions before the rewrite for pydantic v2, It was possible to have flags that would automatically be set to True, if they appeared in the commande line instead of relying on validation.

I was thinking of maybe a solution like adding extra kwargs to fields:
in _add_pydantic_field_to_parser(

shape_kw["action"] = "store_true" if  field_info.json_schema_extra.get('store_true', False) else "store"

# adds the option to do:
ignore_rules: bool = Field(False, description="Ignore rules", cli=('-i', '--ignore-rules'), store_true=True)

I'm not sure if this approach could cause problems