Use REGISTRY_USERNAME and REGISTRY_TOKEN for package registry auth

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/build.yml

@@ -27,6 +27,6 @@ jobs:
 
       - name: Publish to Gitea generic registry
         run: |
-          curl.exe --fail --user "${{ github.repository_owner }}:${{ secrets.GITHUB_TOKEN }}" `
+          curl.exe --fail --user "${{ secrets.REGISTRY_USERNAME }}:${{ secrets.REGISTRY_TOKEN }}" `
             --upload-file dist\es24n_conf.exe `
             "${{ github.server_url }}/api/packages/${{ github.repository_owner }}/generic/es24n-conf-windows/${{ github.run_number }}/es24n_conf.exe"