kindergarten-garden: updates tests to v1.1.1 (#1463)

Resolves #1438. No changes were made since the diff between 1.1.0 and 1.1.1 shows only a comment being removed:

https://github.com/exercism/problem-specifications/pull/1222/files

Author: thomasjpfan

exercises/kindergarten-garden/kindergarten_garden_test.py

@@ -3,7 +3,7 @@
 from kindergarten_garden import Garden
 
 
-# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.1
 
 class KindergartenGardenTest(unittest.TestCase):
     def test_garden_with_single_student(self):