Event Service. Added support for Event Service to CA-based multi-process jobs

• Fixed event service-related code in AthenaMPConfig.py
• Introduced CA-based configuration for OutputStreamSequencerSvc

CC @juesseiv

This merge request affects 2 packages:

• Control/AthenaMP
• Control/AthenaServices

Affected files list will not be printed in this case

Adding @gemmeren ,@ssnyder ,@maszyman as watchers

added 23.0 Core review-pending-level-1 labels

CI Result SUCCESS (hash 854891c9)

	Athena	AthSimulation	AthGeneration	AthAnalysis
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 70691]

Looks good, approving - L1

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

added review-approved-tier0 label

added review-approved-point1 label

merged

mentioned in commit 3b2bccdf

mentioned in merge request !62778 (merged)