chore(ci): use printf for ssh config, drop ssh-keyscan

.gitea/workflows/ci.yml

@@ -22,8 +22,7 @@ jobs:
       - name: Add Gitea SSH Host Key
         run: |
           mkdir -p ~/.ssh
-          ssh-keyscan -p 222 100.93.226.13 >> ~/.ssh/known_hosts
-          echo -e "Host thunderobot\n  HostName 100.93.226.13\n  Port 222\n  StrictHostKeyChecking no" > ~/.ssh/config
+          printf "Host thunderobot\n  HostName 100.93.226.13\n  Port 222\n  StrictHostKeyChecking no\n" > ~/.ssh/config
           chmod 600 ~/.ssh/config
 
       - name: Checkout Code