[TriggerMenuMT] Added idMon:t0 group to Phase1 tau+mu chains

This MR is in the context of ATR-28677.

Tagging @sutt.

This merge request affects 1 package:

• Trigger/TriggerCommon/TriggerMenuMT

This merge request affects 1 file:

• Trigger/TriggerCommon/TriggerMenuMT/python/HLT/Menu/Physics_pp_run3_v1.py

Adding @lidiaz ,@gipezzul ,@iriu ,@shanisch ,@ggonella ,@sutt ,@carquin ,@ademaria ,@malconad as watchers

added Trigger TriggerMenu main review-pending-level-1 labels

WARNING: big files (>100K) are found in the changeset

428K in file Trigger/TriggerCommon/TriggerMenuMT/python/HLT/Menu/Physics_pp_run3_v1.py

changed the description

CI Result SUCCESS (hash dd23a08f)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 3830]

Looks good to me. Lucy (L1)

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit a97f535a