chore(deps): update dependency djangorestframework-simplejwt to v5.4.0

Author: renovate[bot]

requirements/base.txt

@@ -6,7 +6,7 @@ brotli==1.1.0
 django-cloudflare-push==0.2.2
 django_csp==3.8
 django-parler==2.3
-djangorestframework-simplejwt==5.3.1
+djangorestframework-simplejwt==5.4.0
 sentry-sdk==2.19.2
 wagtail==6.3
 whitenoise==6.8.2