Localize notification_utils to the API

This changeset pulls in all of the notification_utils code directly into the API and removes it as an external dependency.  We are doing this to cut down on operational maintenance of the project and will begin removing parts of it no longer needed for the API.

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

app/celery/scheduled_tasks.py

@@ -1,7 +1,6 @@
 from datetime import datetime, timedelta
 
 from flask import current_app
-from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 from sqlalchemy import between
 from sqlalchemy.exc import SQLAlchemyError
 
@@ -32,6 +31,7 @@ from app.dao.users_dao import delete_codes_older_created_more_than_a_day_ago
 from app.enums import JobStatus, NotificationType
 from app.models import Job
 from app.notifications.process_notifications import send_notification_to_queue
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 MAX_NOTIFICATION_FAILS = 10000