User Story: Resolving FIPS incompliance in gardener/landscaper caused by internal code

[SimonTheLeg]

Description

Required FIPS changes: See sub-issues below.

@robertgraeff & @Diaphteiros : We need a bit of investigation in each of these issues reg complexity and whether a potential fix could be risky for stakeholders.

[In-Ko]

Ingo to create subtasks, which need tech-advice, then refinement next week

[In-Ko]

Moved all FIPS related tasks until after the next meeting with the responsible colleagues.