style: sort imports in api tests

tests/api/routes/compute/test_dynamips_nodes.py

@@ -14,12 +14,12 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import pytest
-import sys
 import os
 import stat
-
+import sys
 from unittest.mock import patch
+
+import pytest
 from fastapi import FastAPI, status
 from httpx import AsyncClient