feat: add postgresql

[rjcndev]

Add PostgreSQL Database

https://www.postgresql.org/

[getarcaneappbot]

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Built from commit 04dcf79

[kmendell]

Should we have version for each postgres version thats in support? or just pin it to latest?

[rjcndev]

yes, better to pin the version to prevent breaking changes on version bumps, will change it.

[kmendell]

@rjcndev i guess i meant it already is pinned at 16, but it lookes like v16, v17, and v18 are all in support from postgres so i think having templates for each makes sense, or thats where i was going with latest to keep the templates simple

[rjcndev]

@kmendell ah yes, sorry its pinned at v16.

definitely makes sense to make a template for each LTS version.

I think we dont need to make a latest template because it will maybe break when there is a new major version, and you dont want that the system to make the upgrade of your database automatically, no?

[kmendell]

Me personally i get thrill out of fixing breaking changes LOL, but your right ill add 2 others for Postgres 17 and 18