refactor: remove SPADE dependencies

Did not look at tests yet, this is a very non-final commit.

ref: N25B-300

test/unit/agents/bdi/bdi_core_agent/behaviours/test_belief_setter.py

@@ -3,7 +3,6 @@ import logging
 from unittest.mock import AsyncMock, MagicMock, call
 
 import pytest
-
 from control_backend.agents.bdi.bdi_core_agent.behaviours.belief_setter_behaviour import (
     BeliefSetterBehaviour,
 )

test/unit/agents/bdi/belief_collector_agent/behaviours/test_continuous_collect.py

@@ -2,7 +2,6 @@ import json
 from unittest.mock import AsyncMock, MagicMock
 
 import pytest
-
 from control_backend.agents.bdi.belief_collector_agent.behaviours.belief_collector_behaviour import (  # noqa: E501
     BeliefCollectorBehaviour,
 )