DaVinciTests - avoid race condition with identical ROOT file names in 2 tests

DaVinciTests/tests/qmtest/davinci.qms/configure_dst_py-opts.qmt

 <?xml version="1.0" ?>
 <!--
-    (c) Copyright 2000-2021 CERN for the benefit of the LHCb Collaboration
+    (c) Copyright 2021-2023 CERN for the benefit of the LHCb Collaboration
 
     This software is distributed under the terms of the GNU General Public
     Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".
@@ -18,8 +18,8 @@
   </set></argument>
   <argument name="test_file_db_options_yaml"><text>Upgrade_Bd2KstarMuMu</text></argument>
   <argument name="extra_options_yaml"><text>
-    ntuple_file: DV-Ntuple.root
-    histo_file: DV-Histos.root
+    ntuple_file: DV-Ntuple_py-opts.root
+    histo_file: DV-Histos_py-opts.root
     lumi: False
     input_process: Brunel
   </text></argument>

DaVinciTests/tests/qmtest/davinci.qms/configure_dst_yaml-opts.qmt

 <?xml version="1.0" ?>
 <!--
-    (c) Copyright 2021 CERN for the benefit of the LHCb Collaboration
+    (c) Copyright 2021-2023 CERN for the benefit of the LHCb Collaboration
 
     This software is distributed under the terms of the GNU General Public
     Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".
@@ -18,8 +18,8 @@
   </set></argument>
   <argument name="test_file_db_options_yaml"><text>Upgrade_Bd2KstarMuMu</text></argument>
   <argument name="extra_options_yaml"><text>
-    ntuple_file: DV-Ntuple.root
-    histo_file: DV-Histos.root
+    ntuple_file: DV-Ntuple_yaml-opts.root
+    histo_file: DV-Histos_yaml-opts.root
     lumi: False
     input_process: Brunel
     evt_max: 10