Bump Django to 5.2 and Wagtail to 7.2 (#4482)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marco Acierno <[email protected]>

Author: dependabot[bot]

backend/pyproject.toml

@@ -44,7 +44,7 @@ known-first-party = [
 [project]
 requires-python = ">=3.13.5"
 dependencies = [
-    "django==5.1.4",
+    "django==5.2.7",
     "django-environ==0.10.0",
     "django-model-utils==5.0.0",
     "django-timezone-field==7.0",
@@ -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",