tests: integration: Process short-intervals to wait shortly in total

Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>

Author: cosmo0920

tests/integration/scenarios/out_s3/tests/test_out_s3_001.py

@@ -234,8 +234,13 @@ def test_out_s3_default_retry_exhausted_action_quarantines_file():
 
     service = Service("out_s3_retry_exhausted_default_quarantine.yaml")
     service.start()
-    time.sleep(6)
+    timeout = time.time() + 10
+    files = []
+    while time.time() < timeout:
+        files = [p for p in glob.glob(f"{store_dir}/**", recursive=True) if os.path.isfile(p)]
+        if len(files) > 0:
+            break
+        time.sleep(0.2)
     service.stop()
 
-    files = [p for p in glob.glob(f"{store_dir}/**", recursive=True) if os.path.isfile(p)]
     assert len(files) > 0