Drop privileges before creating temporary directory

Otherwise, when the tests are run as root, the temporary directory
gets created as root, but the cleanup code runs with dropped
privileges, so it cannot remove it.

Author: creideiki

intelmq/tests/bin/test_intelmqctl.py

@@ -65,6 +65,8 @@ class TestIntelMQController(unittest.TestCase):
     def setUp(self):
         super().setUp()
 
+        utils.drop_privileges()
+
         self.tmp_config_dir = TemporaryDirectory()
 
         self.tmp_runtime = f"{self.tmp_config_dir.name}/runtime.yaml"