Fix syntax error in debain test

Signed-off-by: Shivam Sandbhor <shivam.sandbhor@gmail.com>

Author: sbs2001

vulnerabilities/tests/test_debian_oval.py

@@ -97,7 +97,7 @@ def test_get_data_from_xml_doc(self, mock_write):
                                subpath=None)},
                 vulnerability_id='CVE-2001-1593')
 
-        }
+        ]
 
         xml_doc = ET.parse(os.path.join(TEST_DATA, "debian_oval_data.xml"))
         # Dirty quick patch to mock batch_advisories