add upper bounds for django-email-relay

CHANGELOG.md

@@ -17,6 +17,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Fixed
+
+- Added upper bounds for `django-email-relay` dependency. Since it runs distributed, with a central relay service that is responsible for sending emails, the roll-out of a new version should be more controlled. With the upper bounds, the version won't accidentally get bumped in day-to-day work (hopefully!).
+
 ## [2024.14]
 
 ### Changed

src/django_twc_project/requirements.in.jinja

@@ -8,7 +8,9 @@ django-browser-reload
 django-click
 django-coverage-plugin
 django-debug-toolbar
-django-email-relay
+# upper bounds for `django-email-relay` since it runs distributed
+# https://django-email-relay.westervelt.dev/en/latest/updating.html
+django-email-relay<0.5
 django-extensions
 django-filter
 django-flyio