Write tests for standard "Offered K8s version recency"

Created by: anjastrunk

This issue should create a compliance test for the K8s version recency standard. This is part of the SCS standardization work, which should provide tests for all provided SCS standards. The relevant Standard can be found here.

This issue should provide

• a compliance test for the K8s version recency standard

The test itself should

• check the version of the to-be tested cluster against the current cluster versions, the cadence time is written in the standard
• return 0 if cluster version is in the cadence time or an error code if it isn't

Definition of Ready:

• User Story is small enough to be finished within one sprint
• User Story is clear and understood by the whole team
• Acceptance criteria are defined
• Acceptance criteria are clear and understood by the whole team

Definition of Done:

• All acceptance criteria are met
• Changes have been reviewed
• CI tests have run successfully