Update datetime usage

Author: jh27539

api/osf_api.py

@@ -643,7 +643,7 @@ def create_preprint(
  # then the Edit Preprint page thinks that the preprint has unsaved changes even if
  # you have made no changes on the form page. There is a ticket for this issue:
  # ENG-3782.
- current_year = datetime.datetime.now().year
+ current_year = datetime.now().year
  # Get subject id for the subject_name parameter. NOTE: Currently we are creating
  # the preprint with only a single subject, which is the minimum required to publish.
  subject_id = get_subject_id_for_provider(