fix: fix cache layer issues (#16995,#16997,#16996,#17038)
1. Load config and initialize cache layer in jobservice(for GC)
2. Cache artifact by digest the key should contains repository name
3. Repository cache cleanup error when update
4. Skip save cache when request ctx in transaction
Signed-off-by: chlins <chenyuzh@vmware.com>
Implement cache layer for resource manifest, it will read manifest
from cache instead of proxying to distribution if enabled.
Signed-off-by: chlins <chenyuzh@vmware.com>
