Missing import in storages.pumped_hydro

[ClaraBuettner]

The task storages.allocate-pumped-hydro-eGon2035 failed in the current CI-run:

[2022-07-28 14:56:15,109] {taskinstance.py:901} INFO - Executing <Task(Storages (versioned)): storages.allocate-pumped-hydro-eGon2035> on 2022-07-24T20:52:55+00:00
[2022-07-28 14:56:15,119] {standard_task_runner.py:54} INFO - Started process 681625 to run task
[2022-07-28 14:56:15,231] {standard_task_runner.py:77} INFO - Running: ['airflow', 'run', 'egon-data-processing-pipeline', 'storages.allocate-pumped-hydro-eGon2035', '2022-07-24T20:52:55+00:00', '--job_id', '185', '--pool', 'default_pool', '--raw', '-sd', 'DAGS_FOLDER/dags/pipeline.py', '--cfg_path', '/tmp/tmpnidbw63_']
[2022-07-28 14:56:15,232] {standard_task_runner.py:78} INFO - Job 185: Subtask storages.allocate-pumped-hydro-eGon2035
[2022-07-28 14:56:15,270] {logging_mixin.py:120} INFO - Running <TaskInstance: egon-data-processing-pipeline.storages.allocate-pumped-hydro-eGon2035 2022-07-24T20:52:55+00:00 [running]> on host at32
[2022-07-28 14:56:15,610] {taskinstance.py:1150} ERROR - name 'egon' is not defined
Traceback (most recent call last):
  File "/home/egondata/git-repos/friday-evening-weekend-run/environment/lib/python3.8/site-packages/airflow/models/taskinstance.py", line 984, in _run_raw_task
    result = task_copy.execute(context=context)
  File "/home/egondata/git-repos/friday-evening-weekend-run/code/src/egon/data/datasets/__init__.py", line 194, in skip_task
    result = super(type(task), task).execute(*xs, **ks)
  File "/home/egondata/git-repos/friday-evening-weekend-run/environment/lib/python3.8/site-packages/airflow/operators/python_operator.py", line 113, in execute
    return_value = self.execute_callable()
  File "/home/egondata/git-repos/friday-evening-weekend-run/environment/lib/python3.8/site-packages/airflow/operators/python_operator.py", line 118, in execute_callable
    return self.python_callable(*self.op_args, **self.op_kwargs)
  File "/home/egondata/git-repos/friday-evening-weekend-run/code/src/egon/data/datasets/storages/__init__.py", line 92, in allocate_pumped_hydro_eGon2035
    nep = select_nep_pumped_hydro()
  File "/home/egondata/git-repos/friday-evening-weekend-run/code/src/egon/data/datasets/storages/pumped_hydro.py", line 31, in select_nep_pumped_hydro
    cfg = egon.data.config.datasets()["power_plants"]
NameError: name 'egon' is not defined
[2022-07-28 14:56:15,617] {taskinstance.py:1187} INFO - Marking task as FAILED. dag_id=egon-data-processing-pipeline, task_id=storages.allocate-pumped-hydro-eGon2035, execution_date=20220724T205255, start_date=20220728T125615, end_date=20220728T125615
[2022-07-28 14:56:19,991] {local_task_job.py:102} INFO - Task exited with return code 1

I had a look at the recent changes, it looks like f94f918 created this problem. I manually undid this change in the current CI run and the task run successfully.
@AmeliaNadal: These changes seem to be already in the dev-branch. Do you know if it run successfully once? Looking at the code, I would assume that this problem also exists in test-mode.