try and fix flaky test by bringing it in sync with specifications repo

Author: jamis

spec/spec_tests/data/sdam_unified/hello-network-error.yml

@@ -146,7 +146,7 @@ tests:
           failPoint:
             configureFailPoint: failCommand
             mode:
-              times: 2
+              times: 4
             data:
               failCommands:
                 - hello