Update dependency django-anymail to v14

Author: renovate[bot]

pyproject.toml

@@ -16,7 +16,7 @@ dependencies = [
     "markdownify>=0.14.0,<0.15",
     "django-markdownify>=0.9.3,<0.10",
     "django-magiclink>=1.2.0,<2",
-    "django-anymail>=13.0.0,<14",
+    "django-anymail>=14,<15",
     "django-crispy-forms~=2.0",
     "crispy-bulma>=0.11.0,<0.12",
     "django-debug-toolbar>=6.0.0,<7",