Update deploy.yml

ssh-private-key secret formatted incorrectly, fixed

.github/workflows/deploy.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Set up SSH connection
       uses: webfactory/[email protected]
       with:
-        ssh-private-key: ${{ secrets.SSH_TEMP_SERVER_PRIVATE_KEY }}
+        ssh-private-key: ${{ secrets.TEMP_SERVER_SSH_PRIVATE_KEY }}
 
     - name: Connect and deploy
       run: |