Use Griffe's public API

[pawamoy]

Any reason you're importing from the internal API?

pydantic-ai/pydantic_ai_slim/pydantic_ai/_griffe.py

Lines 7 to 8 in b9ec73f

	from _griffe.enumerations import DocstringSectionKind
	from _griffe.models import Docstring, Object as GriffeObject

You're exposing yourself to breakages if I change these internals 😅
Public equivalent:

from griffe import DocstringSectionKind, Docstring, Object as GriffeObject 

If it's to avoid loading too many things, note that _griffe.models imports a lot of stuff anyway:

from _griffe.c3linear import c3linear_merge
from _griffe.docstrings.parsers import DocstringStyle, parse
from _griffe.enumerations import Kind, ParameterKind, Parser
from _griffe.exceptions import AliasResolutionError, BuiltinModuleError, CyclicAliasError, NameResolutionError
from _griffe.expressions import ExprCall, ExprName
from _griffe.logger import logger
from _griffe.mixins import ObjectAliasMixin

[samuelcolvin]

I'd love to use public APIs only.

PR welcome to fix it, otherwise I'll try soon.