If implemented a semver filter regex can be declared in conjuction with
a semver range in the OCIRepository `spec.Reference`
Signed-off-by: Soule BA <bah.soule@gmail.com>
Add tests to test Cosign support for insecure registries. Furthermore,
refactor OCI test utils to be more user friendly and enable accurate
testing of HTTPS and HTTP OCI registries by circumnavigating Docker's
automatic connection downgrade for registries hosted on localhost.
Signed-off-by: Sanskar Jaiswal <jaiswalsanskar078@gmail.com>