Merge branch 'empty_menu_data' into 'master'

Add new empty menu test running on data

See merge request atlas/athena!23371

Trigger/TrigValidation/TrigUpgradeTest/test/test_trigUpgr_empty_menu_build.sh

+#!/bin/bash
+# art-description: athenaMT trigger test on data running no HLT menu
+# art-type: build
+# art-include: master/Athena
+# art-output: *.log
+# art-output: *.new
+# art-output: *.txt
+# art-output: *.root
+
+export EVENTS=10
+export THREADS=1
+export SLOTS=1
+export JOBOPTION="TrigUpgradeTest/full_menu.py"
+export EXTRA="doEmptyMenu=True"
+
+# This test doesn't produce any output useful for RegTest, so do a dummy reference comparison
+export REGTESTEXP="leaving with code"
+export REGTESTREF=`find_data.py TrigUpgradeTest/dummy_regtest.ref`
+
+# Skip dumping chain counts because this test doesn't produce the histogram including them
+export SKIP_CHAIN_DUMP=1
+
+source exec_TrigUpgradeTest_art_athenaMT.sh
+source exec_TrigUpgradeTest_art_post.sh