fix(helm): passthrough jpa.hibernate.ddl-auto

[tom-rm-meyer-ISST]

Description

The ddl-auto setting has not been passed through correctly. In combination with the default value a helm upgrade or a pod restart wiped all data in the database.

Changes:

• passthrough full property (spring.jpa.hibernate.ddl-auto - spring has been missing)
• update ddl-auto standard value
• updated changelog
• updated creation of own partner entity which caused in an exception when partner with own bpnl already existed.

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• Copyright and license header are present on all affected files
• If helm chart has been changed, the chart version has been bumped to either next major, minor or patch level (compared to released chart).

Note: helm chart has not been bumped because a minor change has been entered but not been released.