Upgrade Wagtail

Author: marcoacierno

backend/pyproject.toml

@@ -82,7 +82,7 @@ dependencies = [
     "stripe==10.5.0",
     "djangorestframework==3.15.2",
     "l18n<2022.0,>=2021.3",
-    "wagtail==6.2.2",
+    "wagtail==7.1.2",
     "wagtail-localize==1.10",
     "celery==5.4.0",
     "wagtail-headless-preview==0.8.0",