Fix requirements.in to match #4890

`pip-compile` was attempting to downgrade `django-allauth` because the
last upgrade was done directly the `.txt` requirements files instead of
`requirements.in`

dependencies/pip/requirements.in

@@ -30,7 +30,7 @@ celery[redis]
 dict2xml
 dj-static
 dj-stripe
-django-allauth<0.58  # Backwards incompatible changes
+django-allauth
 django-braces
 django-celery-beat
 django-constance