Use OIDC trusted publishing in the GitHub Actions release workflow

This commit updates the release pipeline to use OIDC trusted publishing
now that we have configured it between GitHub Actions and NPM. This
solution allows us to remove the token variable (because there is no
longer a fixed token) and provenance flag (because provenance
attestations are generated by default with this approach); refer to
https://docs.npmjs.com/trusted-publishers for more information.

.github/workflows/publish_release.yml

@@ -34,6 +34,4 @@ jobs:
         run: npx gulp dist
 
       - name: Publish the `pdfjs-dist` library to NPM
-        run: npm publish ./build/dist --provenance
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npm publish ./build/dist