fix(deps): update dependency dj-database-url to v3 (#2599)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -14,7 +14,7 @@ beautifulsoup4 = "^4.12.2"
 boto3 = "1.38.23"
 celery = "^5.3.0"
 cryptography = "^44.0.0"
-dj-database-url = "2.3.0"
+dj-database-url = "3.0.0"
 django = "4.2.22"
 django-anymail = {version = "13.0", extras = ["mailgun"]}
 django-bulk-update-or-create = "0.3.0"