Add ECAL CC timing modifier to Run3_2025 era.

Author: thomreis

Configuration/Eras/python/Era_Run3_2025_cff.py

@@ -5,5 +5,6 @@
 from Configuration.Eras.Modifier_run3_CSC_2025_cff import run3_CSC_2025
 from Configuration.Eras.Modifier_stage2L1Trigger_2025_cff import stage2L1Trigger_2025
 from Configuration.Eras.Modifier_run3_SiPixel_2025_cff import run3_SiPixel_2025
+from Configuration.ProcessModifiers.ecal_cctiming_cff import ecal_cctiming
 
-Run3_2025 = cms.ModifierChain(Run3_2024, run3_GEM_2025, stage2L1Trigger_2025, run3_SiPixel_2025, run3_CSC_2025)
+Run3_2025 = cms.ModifierChain(Run3_2024, run3_GEM_2025, stage2L1Trigger_2025, run3_SiPixel_2025, run3_CSC_2025, ecal_cctiming)