CI: Updating collisions express processing test - use 13.6 TeV input + the latest settings

Updates for Run3 express processing test:

• Updated input to use stable-beams 13.6 TeV run
• Switched to new x-tag: x675 (HLT monitoring enabled + the latest conditions tag)
• Increased number of events from 25 to 100
• Removed AOD digest and content comparison

@tadej @jmaurer , any comments are welcome. Just to note, that also the test RecoRun3Data_Collisions should be updated, but this I will do in a separate MR (it will be change the outputs).

Tagging also @elmsheus who may want to use this 13.6 TeV input for TrfARTTests: /cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/Tier0ChainTests/TCT_Run3/data22_13p6TeV.00428353.express_express.merge.RAW._lb0800._SFO-ALL._0001.1