Update test_generate_software_versions.py

Update tests assertion

workflow/tests/test_generate_software_versions.py

@@ -20,4 +20,4 @@ def test_software_versions_output():
     with open(software_versions, 'r') as stream:
         data_loaded = yaml.load(stream)
 
-    assert  len(data_loaded['data'].split('<dt>')) == 17
+    assert  len(data_loaded['data'].split('<dt>')) == 18