fix: enable redis url injection via env var, allow apq from diff clients

[df-wg]

Motivation and Context

This solves two issues pointed out:

• We want to enable customers to inject a secure redis url, with auth, rather than having it in a config file that can be read.
• While Persisted Operations need to be bound by client (see Incorrect ClientInfo Handling When Loading Persisted Operations from Cache #1179), APQ should not be, because it's meant to share operations across clients. This PR ensures that that works, even with a local cache

Checklist

• I have discussed my proposed changes in an issue and have received approval to proceed.
• I have followed the coding standards of the project.
• Tests or benchmarks have been added or updated.
• Documentation has been updated on https://github.com/wundergraph/cosmo-docs.
• I have read the Contributors Guide.

[StarpTech]

LGTM