Fixes AttributeError: 'CodeAgent' object has no attribute 'logger' #258

[joaopauloschuler]

This pull request fixes bug #258 :

AttributeError                            Traceback (most recent call last)
[<ipython-input-15-0e9291bb4122>](https://localhost:8080/#) in <cell line: 0>()
      2 tooled_agent = ToolCallingAgent(tools=tools, model=model, add_base_tools=False) # , max_iterations=2
      3 internet_search_agent = ToolCallingAgent(tools=[save_string_to_file, load_string_from_file], model=model, add_base_tools=False) # , max_iterations=2
----> 4 coder_agent = CodeAgent(
      5     tools=tools, model=coder_model,
      6     additional_authorized_imports=additional_authorized_imports,

[/usr/local/lib/python3.11/dist-packages/smolagents/agents.py](https://localhost:8080/#) in __init__(self, tools, model, system_prompt, grammar, additional_authorized_imports, planning_interval, use_e2b_executor, max_print_outputs_length, **kwargs)
    910 
    911         if "*" in self.additional_authorized_imports:
--> 912             self.logger.log(
    913                 "Caution: you set an authorization for all imports, meaning your agent can decide to import any package it deems necessary. This might raise issues if the package is not installed in your environment.",
    914                 0,

AttributeError: 'CodeAgent' object has no attribute 'logger'