feat: Update Postgres to version 17

[lgblaumeiser]

Description

Update the used database version to Postgres 17

Pre-review checks

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[stephanbcbauer]

@ds-hzimmer , @MonikaJacobsen since this is also relevant for testing ⇾ FYI

[ds-hzimmer]

In TRG 5.07 docs/release/trg-5/trg-5-07.md the current "Repo URL" target to Bitnami https://charts.bitnami.com/bitnami does not resolve to an actually available target page.

Should this be adapted to e.g. https://github.com/bitnami/charts/tree/main/bitnami/postgresql or https://github.com/bitnami/charts/blob/main/bitnami/postgresql/Chart.yaml ?

Or potentially to an entirely different source due to the ongoing discussion around the Bitnami Secure Images initiative.

[lgblaumeiser]

In TRG 5.07 docs/release/trg-5/trg-5-07.md the current "Repo URL" target to Bitnami https://charts.bitnami.com/bitnami does not resolve to an actually available target page.

Should this be adapted to e.g. https://github.com/bitnami/charts/tree/main/bitnami/postgresql or https://github.com/bitnami/charts/blob/main/bitnami/postgresql/Chart.yaml ?

Or potentially to an entirely different source due to the ongoing discussion around the Bitnami Secure Images initiative.

Hi @ds-hzimmer, in the view of the latest bitnami developments, I think, we have to rewrite the TRG completely, as it is purely bitnami based which will not work anymore soon. I propose to postpone the switch of the database until we have agreed on a solution to provide a postgres database within the standard helm charts.

We need this soon anyway, because as of my understanding the current helm charts will stop working end of August and we will not have a working system from then on without adopting a new solution.