chore: release 0.47.0

[Milouu]

Added

• wait_completion param on get_performances, list_task_output_assets and get_task_output_asset to block execution until execution is over (#368)
• list_task_output_assets and get_task_output_asset wait that the compute task is over before getting assets (#369)
• warning and help message when logging in with username/password rather than token (#378)
• new Client.logout function, mirroring Client.login (#381)
• Client can now be used within a context manager (#381)

  with Client(
      client_name="org-1",
      backend_type="remote",
      url="http://substra-backend.org-1.com:8000",
      username="org-1",
      password="p@sswr0d44",
  ) as client:
      pass

Changed

• change how API responses are parsed to match server changes (#379)
• Client will now terminate the sessions it starts when given username & password (#381)

Fixed

• typo in exception (#377)