Add leap day test case

Author: ErikSchierboom

exercises/swift-scheduling/canonical-data.json

@@ -99,6 +99,16 @@
       },
       "expected": "2022-08-07T20:00:00"
     },
+    {
+      "uuid": "d651fcf4-290e-407c-8107-36b9076f39b2",
+      "description": "EOW translates to leap day",
+      "property": "deliveryDate",
+      "input": {
+        "meetingStart": "2008-02-25T10:30:00",
+        "description": "EOW"
+      },
+      "expected": "2008-02-29T17:00:00"
+    },
     {
       "uuid": "439bf09f-3a0e-44e7-bad5-b7b6d0c4505a",
       "description": "2M before the second month of this year translates to the first workday of the second month of this year",