krel: Support Tempral CVE metrics
krel: Support Tempral CVE metrics

This commit modifies our cve package to support temporal CVE scores in
our YAML release notes file.

Signed-off-by: Adolfo García Veytia (Puerco) <c76c83ea7a5d94ec25e22856464ed8d194c3e7a7@chainguard.dev>

kubernetes/release,kubernetes/release