try this

Author: jsjoeio

.github/workflows/publish.yaml

@@ -31,11 +31,13 @@ jobs:
           key: ${{ secrets.SSH_KEY }}
           known_hosts: ${{ secrets.KNOWN_HOSTS }}
 
-      - name: Add AUR remote
-        run: git remote add aur ssh://[email protected]/code-server.git
-
-      - name: Push to AUR
-        run: |
-          git checkout master
-          git status
-          git push aur
+      - name: Publish AUR package
+        uses: KSXGitHub/[email protected]
+        with:
+          pkgname: my-awesome-package
+          pkgbuild: ./PKGBUILD
+          commit_username: ${{ secrets.AUR_USERNAME }}
+          commit_email: ${{ secrets.AUR_EMAIL }}
+          ssh_private_key: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
+          commit_message: Update AUR package
+          ssh_keyscan_types: rsa,dsa,ecdsa,ed25519