Disable Tailscale and use SSH directly

.github/workflows/ci_cd.yml

@@ -31,16 +31,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Setup Tailscale
-        uses: tailscale/github-action@main
-        with:
-          authkey: ${{ secrets.TAILSCALE_AUTHKEY }}
-
       - name: SSH into server and update service
         uses: appleboy/ssh-action@master
         with:
           host: ${{ secrets.SERVER_HOST }}
+          port: ${{ secrets.SERVER_PORT }}
           username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SERVER_SSH_KEY }}
           script: |
             cd ${{ secrets.SERVER_PATH }}
             docker compose pull