fix(discover): hardcoded timestamp in test (#58272)

Fixes a test that uses a hardcoded timestamp, which causes issues as the
time is based off of a "day ago".
This test shouldn't care about the timestamps in the result, so we can
just compare the `count` values directly.

tests/snuba/api/endpoints/test_organization_events_stats_span_metrics.py

@@ -214,7 +214,9 @@ class OrganizationEventsStatsSpansMetricsEndpointTest(MetricsEnhancedPerformance
 
         data = response.data["data"]
         assert response.status_code == 200
-        assert data == [(1697364000, [{"count": 0}]), (1697364060, [{"count": 4.0}])]
+        assert len(data) == 2
+        assert data[0][1][0]["count"] == 0.0
+        assert data[1][1][0]["count"] == 4.0
 
 
 class OrganizationEventsStatsSpansMetricsEndpointTestWithMetricLayer(