Obsolete versions of the `rustsec` crate do not support the new V3 advisory format

If you are seeing this message, you are running an obsolete version of
`cargo-audit` which does not support the new V3 advisory format.
These versions are end-of-life.

This advisory is a notice that that it will soon be unable to parse the
advisory database.

Please upgrade `cargo-audit` to a newer release.