fix: pydantic schema parser now supports nested objects

[inchoate]

fix: fixes pydantic parser to support nested objects.
fix: small update to docs

This fails before the PR and succeeds afterward:

from pydantic import BaseModel
from typing import List, Optional

from crewai.utilities.pydantic_schema_parser import PydanticSchemaParser


# Define test models
class InnerModel(BaseModel):
    inner_field: int


class TestModel(BaseModel):
    simple_field: str
    list_field: List[int]
    optional_field: Optional[str]
    nested_model: InnerModel


print(PydanticSchemaParser(model=InnerModel).get_schema())   # works
print(PydanticSchemaParser(model=TestModel).get_schema())    # fails

[e4stwood]

Thanks for this. Struggling with this error atm. Hopefully this is merged.

[joaomdmoura]

Nice! I see there are some conlicts, I'll try to fix it