Update dependency redis to v7

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -47,7 +47,7 @@ click = "^8.0.0"
 tahrir-api = "^1.4.0"
 dogpile-cache = "^1.3.2"
 pymemcache = "^4.0.0"
-redis = {version = "^5.0.4 || ^6.0.0"}
+redis = {version = "^5.0.4 || ^6.0.0 || ^7.0.0"}
 requests-ratelimiter = "^0.6.0 || ^0.7.0"
 
 # Message schemas. The reference list of all message schemas is in