Promote to Extended Test

Make target: p2p-promote-to-extended-test

After successful run of p2p-functional, p2p-integration, and p2p-nft the version is considered ready for Extended Test.

The default implementation as provided by software templates rarely needs changing:

p2p-promote-to-extended-test:
    corectl p2p promote <app-name>:${VERSION} \
        --source-stage $(FAST_FEEDBACK_PATH) \
        --dest-registry $(REGISTRY) \
        --dest-stage $(EXTENDED_TEST_PATH)

This moves the immutable versioned artifact into the registry for extended test and will be picked up next time Extended Test runs