test(tox): Unpin pytest on Redis tests

Author: szokeasaurusrex

tox.ini

@@ -582,7 +582,6 @@ deps =
 
     # Redis
     redis: fakeredis!=1.7.4
-    redis: pytest<8.0.0
     {py3.6,py3.7}-redis: fakeredis!=2.26.0  # https://github.com/cunla/fakeredis-py/issues/341
     {py3.7,py3.8,py3.9,py3.10,py3.11,py3.12,py3.13}-redis: pytest-asyncio
     redis-v3: redis~=3.0