make orchestrator-core==2.7.5

@karel.vanklink I just checked orchestrator-core's code again and this code has been around since 2.2 so I am surprised now!

requested review from @karel.vanklink

assigned to @mohammad.torkashvand

approved this merge request

added 2 commits

• 9f0aba62 - 1 commit from branch develop
• 6c37f370 - make orchestrator-core==2.7.5

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enabled an automatic merge when all merge checks for 6c37f370 pass

merged