setup-node's registry-url writes an npmrc auth-token line with a
placeholder token, which npm used instead of OIDC and got a 404 from
the registry. Dropping registry-url lets trusted publishing work.
New clis: github.com (repo, user, search, trending, issues) and
linkedin.com (profile, company, jobs; public guest views work through
the Chrome fingerprint). Both verified live before shipping.
