fix: remove NODE_AUTH_TOKEN to use npm trusted publishing (OIDC)

The workflow was using NODE_AUTH_TOKEN from secrets, which overrides
the OIDC-based trusted publishing flow configured on npm. Removing it
lets npm authenticate via the GitHub Actions OIDC token automatically.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: waldekmastykarz

.github/workflows/publish.yml

@@ -47,11 +47,7 @@ jobs:
       - name: Publish @next
         if: ${{ steps.check_beta.outputs.is_beta == 'true' }}
         run: npm publish --access public --provenance --tag next
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
       - name: Publish @latest
         if: ${{ steps.check_beta.outputs.is_beta == 'false' }}
         run: npm publish --access public --provenance
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}