[WIP] Investigate disabling database connection pool in Micronaut

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Investigate what would be required to have the connection pool of micronaut disabled? I want every connection to be open and closed. Does it already exist? If not, how could it be implemented? Only analysis, no code changes

I am referring to database connection pool, I want to disable detabase connection pool, meaning that every time a connection is requested a new one is created and every time close is called in such a connection it is actually closed, not returned to the pool.

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