chore: disable signed pushed (#13)

Author: RoyalOughtness

.github/workflows/upstream-sync.yml

@@ -40,7 +40,6 @@ jobs:
           passphrase: ${{ secrets.PASSPHRASE }}
           git_user_signingkey: true
           git_commit_gpgsign: true
-          git_push_gpgsign: true
 
       - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
         with: