feat(core): History Model migrations for Ticket Category

ref: #605 #614

app/core/viewsets/ticket_category.py

@@ -2,6 +2,8 @@ from drf_spectacular.utils import extend_schema, extend_schema_view, OpenApiResp
 
 from api.viewsets.common import ModelViewSet
 
+# THis import only exists so that the migrations can be created
+from core.models.ticket.ticket_category_history import TicketCategoryHistory    # pylint: disable=W0611:unused-import
 from core.serializers.ticket_category import (
     TicketCategory,
     TicketCategoryModelSerializer,