Spegel Registry Support in the registry-cache extension

[dimitar-kostadinov]

Enhancement Description

• One-line enhancement description: Spegel Registry Support in the registry-cache extension
• Steering: https://gardener.cloud/community/steering/technical/0043-spegel-registry-support-in-the-registry-cache-extension
• Gardener Enhancement Proposal: GEP-0043: Spegel Registry Support in the registry-cache extension #44
• Tracking Issue: ☂️Spegel P2P Registry Cache gardener-extension-registry-cache#320
• GEP (g/enhancements) update PR(s):

Please keep this description up to date. This will help everybody to track the evolution of the enhancement efficiently.