Fix usage of logger in python-derivemodule
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "main.py", line 365, in
scandata_path = get_scandata_xml(identifier, source_file)
File "/usr/local/lib/python3.8/dist-packages/derivermodule/scandata.py", line 46, in get_scandata_xml
logger.warning('Unable to extract scandata.xml from scandata.zip')
AttributeError: module 'derivermodule.logger' has no attribute 'warning'