Add `connection_specification_name/db_config` to `LB::Configuration`
What does this MR do and why?
This is in preparation to allow asynchronous handling of replicas and re-use of primary connection in a load balancing context.
Related to: #341451 (closed)
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by Kamil Trzciński (Back 2025-01-01)