Change redismod docker to redis-stack-server (redis#2556)

* Change redismod docker to redis-stack-server

* redis-stack-server

* syntax

* Update tox.ini

* fetching docker from redis repo

Co-authored-by: Chayim I. Kirshen <c@kirshen.com>

tox.ini

@@ -92,9 +92,9 @@ healtcheck_cmd = python -c "import socket;print(True) if 0 == socket.socket(sock
 volumes =
     bind:rw:{toxinidir}/docker/redis6.2/sentinel/sentinel_3.conf:/sentinel.conf
 
-[docker:redismod]
-name = redismod
-image = redislabs/redismod:edge
+[docker:redis_stack]
+name = redis_stack
+image = redis/redis-stack-server:edge
 ports =
     36379:6379/tcp
 healtcheck_cmd = python -c "import socket;print(True) if 0 == socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect_ex(('127.0.0.1',36379)) else False"
@@ -279,7 +279,7 @@ docker =
     sentinel_2
     sentinel_3
     redis_cluster
-    redismod
+    redis_stack
     stunnel
 extras =
     hiredis: hiredis