Merge pull request #4065 from django-oscar/dependabot/pip/redis-gte-3.5-and-lt-4.6

Update redis requirement from <4.4,>=3.5 to >=3.5,<4.6

requirements.txt

@@ -11,7 +11,7 @@ Whoosh>=2.7,<2.8
 django-environ>=0.4,<0.10
 django-redis>=4.12,<5.3
 pysolr>=3.9,<3.10
-redis>=3.5,<4.4
+redis>=3.5,<4.6
 requests>=2.25,<3
 uWSGI>=2.0.19,<2.1
 whitenoise>=5.2,<6.5