Fix Flakes Errors: openspending/test/unit/importer/test_csv.py
Fix Flakes Errors: openspending/test/unit/importer/test_csv.py

openspending/spendb,USStateDept/FPA_Core,CivicVision/datahub,johnjohndoe/spendb,johnjohndoe/spendb,nathanhilbert/FPA_Core,johnjohndoe/spendb,USStateDept/FPA_Core,spendb/spendb,openspending/spendb,openspending/spendb,pudo/spendb,pudo/spendb,pudo/spendb,spendb/spendb,CivicVision/datahub,spendb/spendb,CivicVision/datahub,nathanhilbert/FPA_Core,USStateDept/FPA_Core,nathanhilbert/FPA_Core