[Other] Adapt C&H test cluster to Requirements for container registry (scs-0212)

[anjastrunk]

Adapt C&H test cluster to Requirements for container registry (scs-0212) and evaluate its costs.

Todos:

• Adapt C&H test cluster to SCS standard
• Update standard documentation with costs/cost estimation
• Write how to and/or adaption script

[cah-hbaum]

There is neither a test for this yet nor is it in the SCS Compatible KaaS v2, so this issue will be closed for now.