Issue deploying function schedule with cdf toolkit

Hello, 

We are using: Toolkit Version '0.5.20' 

We are having a file schedules.Function.yaml: 

- name: Run every 10 minutes to do some work
  functionExternalId: fn_name
  description: Run every 10 minutes to do some work
  cronExpression: "*/10 * * * *"
  data:
    extractionPipeline: "test"

When deploying we have this error trace:
 

Traceback (most recent call last):
  File "venv/bin/cdf-tk", line 8, in <module>
    sys.exit(app())
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf.py", line 116, in app
    _app()
  File "venv/lib/python3.10/site-packages/typer/main.py", line 340, in __call__
    raise e
  File "venv/lib/python3.10/site-packages/typer/main.py", line 323, in __call__
    return get_command(self)(*args, **kwargs)
  File "venv/lib/python3.10/site-packages/click/core.py", line 1161, in __call__
    return self.main(*args, **kwargs)
  File "venv/lib/python3.10/site-packages/typer/core.py", line 740, in main
    return _main(
  File "venv/lib/python3.10/site-packages/typer/core.py", line 195, in _main
    rv = self.invoke(ctx)
  File "venv/lib/python3.10/site-packages/click/core.py", line 1697, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "venv/lib/python3.10/site-packages/click/core.py", line 1443, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "venv/lib/python3.10/site-packages/click/core.py", line 788, in invoke
    return __callback(*args, **kwargs)
  File "venv/lib/python3.10/site-packages/typer/main.py", line 698, in wrapper
    return callback(**use_params)
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/apps/_core_app.py", line 280, in deploy
    cmd.run(
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/commands/_base.py", line 55, in run
    raise e
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/commands/_base.py", line 52, in run
    result = execute(*args, **kwargs)
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/apps/_core_app.py", line 281, in <lambda>
    lambda: cmd.execute(
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/commands/deploy.py", line 165, in execute
    result = self.deploy_resources(
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/commands/deploy.py", line 197, in deploy_resources
    return self._deploy_resources(
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/commands/deploy.py", line 224, in _deploy_resources
    to_create, to_update, to_delete, unchanged, duplicated = worker.load_resources(
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/loaders/_worker.py", line 109, in load_resources
    resource_list = self.loader.load_resource_file(filepath, environment_variables)
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/loaders/_resource_loaders/function_loaders.py", line 128, in load_resource_file
    item_id = self.get_id(item)
  File "venv/lib/python3.10/site-packages/cognite_toolkit/_cdf_tk/loaders/_resource_loaders/function_loaders.py", line 102, in get_id
    return item["externalId"]
KeyError: 'externalId'

Could you please check?