title: NPM Publish suddenly stopped working with 403 (verified email, unique name & version, no proxy, automation token)
body: <p>I've been publishing a private scoped NPM package.
  The publishing process was automated in AWS CI pipeline.
  It's been working fine for a while then publishing just stopped working with 403 error one day. There were no change in CI pipeline whatsoever.
  These are what I have tried:</p>
  <ul>
  <li>renewing token (both automation and publish)</li>
  <li>changing version numbers to something unique</li>
  <li>changing package access/publish access</li>
  <li>publishing from local computer</li>
  <li>publishing from local computer with different authorized account</li>
  <li>tried different versions of NPM 6~8</li>
  <li>NPM audit fix --force</li>
  <li>re-installing node_modules</li>
  </ul>
  <p>They all failed with the same 403 error.</p>
  <p>What else can I try? Please help.</p>