Update mirror status

manifest.json

@@ -295,6 +295,12 @@
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       "source_file_count": 45329,
       "source_bytes": 4222390719
+    },
+    "test/seq_test_18.tar": {
+      "size": 4242339840,
+      "sha256": "b6095b37462a1956a5ed1fdfa752b1a665c53b103cfe22e749e9197a15f75dfe",
+      "source_file_count": 41552,
+      "source_bytes": 4210536568
     }
   }
 }