Remove all external npmjs.com/advisories links

[acdvs]

As of 7 October 2021 with the npm audit shift to GAD, all listings previously found at npmjs.com/advisories now redirect to the matching listing in GAD.

All npmjs.com/advisories links should be removed now that they are recursive.

One example: https://github.com/advisories/GHSA-333w-rxj3-f55r

[KateCatlin]

@acdvs thanks for reaching out about this! We've got an issue created and in our backlog to address it as time allows.