Add type: ignore for pre-existing protobuf stub issues

Co-Authored-By: João <joao@crewai.com>

lib/crewai/src/crewai/a2a/utils/agent_card.py

@@ -14,7 +14,7 @@ from typing import TYPE_CHECKING
 
 from a2a.client.errors import A2AClientError
 from a2a.types import AgentCapabilities, AgentCard, AgentInterface, AgentSkill
-from google.protobuf.json_format import ParseDict
+from google.protobuf.json_format import ParseDict  # type: ignore[import-untyped]
 
 from crewai.a2a._compat import agent_card_to_dict, agent_card_protocol_version, proto_copy
 from aiocache import cached  # type: ignore[import-untyped]
@@ -280,7 +280,7 @@ async def _afetch_agent_card_impl(
             )
             response.raise_for_status()
 
-            agent_card = ParseDict(response.json(), AgentCard())
+            agent_card: AgentCard = ParseDict(response.json(), AgentCard())  # type: ignore[assignment]
             fetch_time_ms = (time.perf_counter() - start_time) * 1000
             agent_card_dict = agent_card_to_dict(agent_card)
 

lib/crewai/src/crewai/a2a/utils/agent_card_signing.py

@@ -18,7 +18,7 @@ import logging
 from typing import Any, Literal
 
 from a2a.types import AgentCard, AgentCardSignature
-from google.protobuf.json_format import MessageToDict
+from google.protobuf.json_format import MessageToDict  # type: ignore[import-untyped]
 import jwt
 from pydantic import SecretStr
 

lib/crewai/src/crewai/a2a/utils/delegation.py

@@ -329,7 +329,7 @@ async def aexecute_a2a_delegation(
             turn_number=turn_number,
             agent_branch=agent_branch,
             agent_id=agent_id,
-            agent_role=agent_role,
+            agent_role=agent_role,  # type: ignore[arg-type]
             response_model=response_model,
             updates=updates,
             from_task=from_task,

lib/crewai/src/crewai/a2a/utils/task.py

@@ -81,7 +81,7 @@ def _get_data_parts(parts: list[Part]) -> list[dict[str, Any]]:
     result: list[dict[str, Any]] = []
     for part in parts:
         if part_has_data(part):
-            from google.protobuf.json_format import MessageToDict
+            from google.protobuf.json_format import MessageToDict  # type: ignore[import-untyped]
 
             val = MessageToDict(part.data)
             if isinstance(val, dict):