Convert id to local time in wsb2sb test (#32)

Allow `test_scrapbook_convert_wsb2sb.TestRun.test_meta_icon05`
to pass in arbitrary timezone.

Author: maxnikulin

test/test_scrapbook_convert_wsb2sb.py

@@ -435,12 +435,13 @@ def test_meta_icon05(self):
         with open(self.test_output_rdf, 'rb') as fh:
             tree = etree.parse(fh)
 
+        ts = util.datetime_to_id_legacy(util.id_to_datetime('20200101000000000'))
         self.assertEqual(
             tree.find(f'{RDF}Description').attrib[f'{NS1}icon'],
-            'resource://scrapbook/data/20200101080000/favicon.bmp'
+            f'resource://scrapbook/data/{ts}/favicon.bmp'
             )
         self.assertTrue(
-            os.path.isfile(os.path.join(self.test_output, 'data', '20200101080000', 'favicon.bmp'))
+            os.path.isfile(os.path.join(self.test_output, 'data', ts, 'favicon.bmp'))
             )
 
     def test_meta_icon06(self):