Draft: [trigEGam] Integration beteween mongroups and TrigEgammaMonitoring

This MR is to include mongroups inside the TrigEgammaMonitoring framework.

• A method was implemented in the TrigEgammaMonitCategoryMT reading, for now, the mongoups from JSON local file produced by a ART test.
• At this moment, only the primary chains was configured, and then, called inside the TrigEgammaMonitorConfigMT.py file .
• In a next MR, we will include a logic to route chains to shifter and expert folders automatically, according to their respective mongroups.

JIRA Ticket: ATR-25841 .

ping: @safarzad , @cjmeyer , @fernando , @kyjones and @jlieberm

Database/AthenaPOOL/OutputStreamAthenaPool/src/EventInfoAttListTool.cxx

@@ -198,5 +198,7 @@ StatusCode EventInfoAttListTool::eventTag(AthenaAttributeList& eventTag,
 /** finialize - called once at the end */
 StatusCode  EventInfoAttListTool::finalize() {
   ATH_MSG_DEBUG("in finalize()");
+  m_attribListSpec->release();
+  m_attribListSpec = nullptr;
   return AthAlgTool::finalize();
 }