[test] try with sequential update

test/Test/Utils/Jobs.hs

@@ -469,7 +469,7 @@ test = do
       testExceptions
     it "fairly picks equal-priority-but-different-kind jobs" $
       testFairness
-  describe "job status update and tracking" $ do
+  describe "job status update and tracking" $ sequential $ do
     it "can fetch the latest job status" $
       testFetchJobStatus
     it "can spin two separate jobs and track their status separately" $