Use default redis socket name in example config

[emcauliffe]

☑️ Resolves

• Update example config to connect to default redis-server.sock file
• Matches https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/caching_configuration.html#connecting-to-single-redis-server-over-unix-socket

🖼️ Screenshots

Before

After

[kesselb]

Thanks for your pull request 👍

Update example config to connect to default redis-server.sock file

The socket path/name is often adjusted by the package maintainer to match the system's default.
Default value provided from redis.conf (https://raw.githubusercontent.com/redis/redis/7.0/redis.conf) is /run/redis.sock

Matches https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/caching_configuration.html#connecting-to-single-redis-server-over-unix-socket

Not anymore? ;) The linked article says '/run/redis/redis-server.sock', 🤔

Could you please update your pull request to align the socket paths?