pacbrew: enable mirror upload

Author: Cpasjuste

.github/workflows/pacbrew.yml

@@ -33,7 +33,6 @@ jobs:
         uses: shimataro/ssh-key-action@v2
         with:
           key: ${{ secrets.SSH_PRIVATE_KEY }}
-          name: key_id_main
           known_hosts: '# dummy'
       - name: Adding main key to known hosts
         run: ssh-keyscan -H ${{ secrets.SSH_HOST }} >> ~/.ssh/known_hosts