ci: add stdout logs

.github/workflows/e2e.yml

@@ -104,6 +104,8 @@ jobs:
         echo '[Service]' >> test.service
         echo 'User=user' >> test.service
         echo 'RemainAfterExit=yes' >> test.service
+        echo 'StandardError=append:/var/log/test.log
+        echo 'StandardOutput=append:/var/log/test.log
         echo 'Type=oneshot' >> test.service
         echo 'WorkingDirectory=/home/user' >> test.service
         echo 'TimeoutStopSec=1' >> test.service
@@ -121,6 +123,8 @@ jobs:
           sleep 30s
         done
 
+        ssh root@$IP "cat /var/log/test.log"
+
         scp -r user@$IP:/home/user/.out-of-tree/logs .
 
         ssh root@$IP systemctl is-active test