Build base image step should be in build package workflow, and local base images build by new step should be removed since images have been pushed to docker hub.
Signed-off-by: danfengliu <danfengl@vmware.com>
1. Add manifest and CNAB replication tests;
2. Duplicate ORAS and sigularity tests from API test to nightly common
tests;
3. Optimize get dns code in CI;
4. Optimize E2E dockerfile;
5. Sample image size should be cover requirement for large size like 512M.
Signed-off-by: danfengliu <danfengl@vmware.com>
