* add oci client for registry * add LoadRepoIndexFormOci * feat: Adapt to oci-based helmchart repo * Update the golang base image version in the dockerfile * update oci_test.go Signed-off-by: lingbo <lingbo@lingbohome.com> * fix: Update oci_test.go Signed-off-by: 凌波 <lingbo@lingbohome.com> * Update go imports --------- Signed-off-by: lingbo <lingbo@lingbohome.com> Signed-off-by: 凌波 <lingbo@lingbohome.com> Co-authored-by: lingbo <lingbo@lingbohome.com> Co-authored-by: hongming <coder.scala@gmail.com>