Allow users to ignore advisories they know that they are not vulernable to for ci

We are running bundler-audit on our ci, but a few vulnerabilities are unfixable for us (stuck on rails 2) or not relevant(sql injection vulnerability vs project that does not use params).
To get a green ci build/to see when something new breaks we would like to ignore those specific CVEs for the given version (it's okay if it pops up again if we upgraded our version, a nice reminder)