fix(docker): don't run redis with protected mode

For our development setup we run a redis container without a
username/password. Redis recently set protected mode by default which
disallows this, turn it off as it has no security implication.

docker/redis-entrypoint.sh

@@ -2,5 +2,6 @@
 set -eou pipefail
 
 sed -ri 's/^bind .*$/bind 0.0.0.0 -::1/g' /etc/redis/redis.conf
+sed -ri 's/protected-mode yes/protected-mode no/g' /etc/redis/redis.conf
 
 exec "$@"