This updates github.com/opencontainers/image-spec/schema subpackage from an obsolete
.../jsonschema/v5 to /v6 .
We use these dependencies only in tests, so it doesn't matter that much,
but removing references to years-old unmaintained versions makes it easier to check
/ remove other such cases.
(This is test-only, so the added files in vendor/ do not mean a larger binary
size; it's almost exactly unchanged.)
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
(skopeo copy) and (skopeo sync) now support --sign-by-sigstore=param-file,
using the containers-sigstore-signing-params.yaml(5) file format.
That notably adds support for Fulcio and Rekor signing.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>