Bug: integration with giphy API is not working

[davorrunje]

Describe the bug
Standalone client with security created for giphy API works but it fails when running it with fastagency run

How to reproduce
Include source code:

import os

import requests
from autogen.agentchat import ConversableAgent
from autogen import UserProxyAgent

from fastagency.core import Chatable
from fastagency.core.runtimes.autogen.base import AutoGenWorkflows
from fastagency.core.io.console import ConsoleIO
from fastagency.openapi.client import Client
from fastagency.openapi.security import APIKeyQuery

from fastagency import FastAgency

llm_config = {
    "config_list": [
        {
            "model": "gpt-4o-mini",
            "api_key": os.getenv("OPENAI_API_KEY"),
        }
    ],
    "temperature": 0.8,
}

GIPHY_OPENAPI_URL = "https://raw.githubusercontent.com/airtai/fastagency/main/examples/openapi/giphy_openapi.json"
with requests.get(GIPHY_OPENAPI_URL, timeout=10) as response:
    response.raise_for_status()
    openapi_json = response.text
# print(openapi_json)
print(type(openapi_json))

wf = AutoGenWorkflows()

@wf.register(name="simple_gif_search", description="Giphy gif chat")
def gif_workflow(io: Chatable, initial_message: str, session_id: str) -> str:
    
    giphy_client = Client.create(openapi_json=openapi_json)
    giphy_client.set_security_params(APIKeyQuery.Parameters(value="ASK_KUMARAN"))

    user_agent = UserProxyAgent(
        name="User_Agent",
        system_message="You are a user agent",
        llm_config=llm_config,
        human_input_mode="NEVER",
    )
    giphy_agent = ConversableAgent(
        name="Giphy_Agent",
        system_message="You are a gif agent who search for random gifs on Giphy",
        llm_config=llm_config,
        human_input_mode="NEVER",
    )

    giphy_client.register_for_llm(giphy_agent)
    giphy_client.register_for_execution(user_agent)

    chat_result = user_agent.initiate_chat(
        giphy_agent,
        message=initial_message,
        summary_method="reflection_with_llm",
        max_turns=3,
    )

    return chat_result.summary

app = FastAgency(wf=wf, io=ConsoleIO())

Get an API key from giphy, update it in the above code and run it

Expected behavior
Agents should fetch a gif url using giphy api

Observed behavior
Fails with TypeError: Object of type Path is not JSON serializable

Full traceback
Full traceback is available with @kumaranvpl if needed. Too many lines to paste it here.