Issue: ISO Time Conversion

[skeenp-dpe]

2022-01-13 08:26:17,451 INFO: Connected to https://trade.maps.arcgis.com/
2022-01-13 08:26:17,451 INFO: Processing Items
2022-01-13 08:26:17,451 INFO:  - 02746f5e401c4734b36923cb20d0018b
2022-01-13 08:27:02,927 ERROR: Unexpected error occured backing up files, please review code and try again.
Traceback (most recent call last):
  File "C:\Users\skeenp01\Documents\GitHub\agol_backup\backup_mgr.py", line 163, in run
    util.set_ts(os.path.join(itmdir, 'lastupdate.ts'))
  File "C:\Users\skeenp01\Documents\GitHub\agol_backup\util.py", line 151, in set_ts
    export_obj(file, datetime.isoformat())
TypeError: unbound method datetime.isoformat() needs an argument

export_obj(file, datetime.now().isoformat())