fix wagtail processor imports for wagtail 5 compatability

Author: rachelhsmith

CHANGELOG.md

@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## unreleased
+
+- Fix imports for compatability with Wagtail >= 5.0
+
 ## v1.1.1 (2023-12-18)
 
 - Remove upper bound on Faker dependency

birdbath/processors/contrib/wagtail.py

@@ -1,5 +1,5 @@
 from wagtail.contrib.forms.models import FormSubmission
-from wagtail.search.models import Query
+from wagtail.contrib.search_promotions.models import Query
 
 from birdbath.processors import BaseModelDeleter