pytest fixture simtel_path changes DB configuration

[GernotMaier]

The pytest fixture simtel_path in conftest.py changes the environment parameters and therefore might lead to errors when accessing the DB.

e.g., the line

def corsika_runner(corsika_config_data, io_handler, simtel_path, db_config):

does not provide any DB access.

The line following line is working fine:

def corsika_runner(corsika_config_data, io_handler, db_config, simtel_path):

This should be improved / fixed.

[GernotMaier]

This issue was fixed in #822 , but wasn't closed. I am closing it now.