Added ssl_check_hostname query param for redis 6.0 (#4540)

Redis 6.0 switches the default of `ssl_check_hostname` from False to
True (see breaking changes
[here](https://github.com/redis/redis-py/releases/tag/v6.0.0), so an
extra URL param is required.

This came up for me locally as well as on the [test
instance](https://otf.sentry.io/issues/6595117738/events/0a22d20ea8d94823a583b395fe921e7f/)

Author: wes-otf

hypha/settings/base.py

@@ -510,7 +510,10 @@
 if REDIS_URL and not (CELERY_BROKER_URL or CELERY_RESULT_BACKEND):
     cert_param = ""
     if REDIS_URL.startswith("rediss") and REDIS_SSL_CERT_REQS:
-        cert_param = f"?ssl_cert_reqs={REDIS_SSL_CERT_REQS}"
+        check_hostname = str(REDIS_SSL_CERT_REQS != "CERT_NONE").lower()
+        cert_param = (
+            f"?ssl_cert_reqs={REDIS_SSL_CERT_REQS}&ssl_check_hostname={check_hostname}"
+        )
     CELERY_BROKER_URL = f"{REDIS_URL}/0{cert_param}"
     CELERY_RESULT_BACKEND = f"{REDIS_URL}{cert_param}"
     # Manipulation of the environ vars is needed due to how celery processes & prioritizes settings