fix: Upgrade oras-py and fix API breakage.
In oras-py 0.1.14 a breaking API change was made that changed the behavior of tags
lookup. This updates minimum version to that changed version and fixes hoppr usage to align.
In oras-py 0.1.14 a breaking API change was made that changed the behavior of tags
lookup. This updates minimum version to that changed version and fixes hoppr usage to align.