gigasecond: update tests to v1.1.0 (#1273)

Author: mrcfps

exercises/gigasecond/gigasecond_test.py

@@ -1,11 +1,10 @@
 import unittest
-
 from datetime import datetime
 
 from gigasecond import add_gigasecond
 
 
-# Tests adapted from `problem-specifications//canonical-data.json` @ v1.0.0
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0
 
 class GigasecondTest(unittest.TestCase):
     def test_date_only_specification_of_time(self):