Update Postgres to version 16

Signed-off-by: Lars Geyer-Blaumeiser <[email protected]>

Author: lgblaumeiser

docs/release/trg-5/trg-5-07.md

@@ -50,4 +50,4 @@ The following table describes the required version of dependencies for all produ
 
 | Name       | Repo URL                                      | Chart version | App version |
 |------------|-----------------------------------------------|:-------------:|:-----------:|
-| postgresql | [Bitnami](https://charts.bitnami.com/bitnami) |    12.x.x     |   15.x.x    |
+| postgresql | [Bitnami](https://charts.bitnami.com/bitnami) | >=15.4 <16    | >=16.3 <17  |