fix(tests): Fix flaky uptime alert index ordering tests

Sort both expected and actual results by ID before comparison in
check_valid_response. The endpoint doesn't apply explicit ordering,
so results can come back in non-deterministic order.

Fixes #108890
Fixes #108884
Co-Authored-By: Claude <noreply@anthropic.com>

Author: joshuarli

tests/sentry/uptime/endpoints/test_organization_uptime_alert_index.py

@@ -12,10 +12,15 @@ class OrganizationUptimeAlertIndexEndpointTest(OrganizationUptimeAlertIndexBaseE
     method = "get"
 
     def check_valid_response(self, response, expected_detectors):
-        assert [
-            serialize(uptime_alert, serializer=UptimeDetectorSerializer())
-            for uptime_alert in expected_detectors
-        ] == response.data
+        expected = sorted(
+            [
+                serialize(uptime_alert, serializer=UptimeDetectorSerializer())
+                for uptime_alert in expected_detectors
+            ],
+            key=lambda x: x["id"],
+        )
+        actual = sorted(response.data, key=lambda x: x["id"])
+        assert expected == actual
 
     def test(self) -> None:
         alert_1 = self.create_uptime_detector(name="test1")