Configure mep_passthrough without Allen monitoring

This MR configures Allen without monitoring, to avoid the ever changing counters in the MooreOnline test.

AllenOnline/tests/qmtest/mep_passthrough.qmt

@@ -25,7 +25,7 @@
     <text>--mep</text><text>mdf:root://eoslhcb.cern.ch//eos/lhcb/wg/rta/samples/mc/Upgrade_minbias_MD_FTv6_MEP/00146082_00000001_1.mep</text>
     <text>--mep-mask-source-id-top-5</text>
     <text>--output-file</text><text>mep_passthrough.mdf</text>
-    <text>--enable-monitoring-printing</text><text>0</text>
+    <text>--register-monitoring-counters</text><text>0</text>
   </set></argument>
   <argument name="use_temp_dir"><enumeral>true</enumeral></argument>
   <argument name="reference"><text>../refs/mep_passthrough.ref</text></argument>