Count cancelled runs in last-5 flaky check (#38614)

Author: aIbrahiim

.test-infra/metrics/sync/github/github_runs_prefetcher/code/main.py

@@ -188,10 +188,14 @@ def filter_workflow_runs(run, issue):
 
     print(f"Success rate: {success_rate}")
 
-    # Check if last 5 runs are all failures
-    last_5_failed = len(workflow_runs) >= 5 and all(run.status == "failure" for run in workflow_runs[:5])
+    # Check if last 5 runs are all failures or cancelled (e.g. job timeout)
+    last_5_failed = len(workflow_runs) >= 5 and all(
+        run.status in ("failure", "cancelled") for run in workflow_runs[:5]
+    )
     if last_5_failed:
-        print(f"The last 5 workflow runs for {workflow.name} have all failed")
+        print(
+            f"The last 5 workflow runs for {workflow.name} have all failed or been cancelled"
+        )
 
     return success_rate < workflow.threshold or last_5_failed