Rename GroupStage and GroupValueStream models
What does this MR do and why?
Not user-facing change.
This MR is a continuation of !107356 (merged) where we rename the GroupStage
-> Stage
and GroupValueStream
-> ValueStream
classes.
Reasoning: We plan to use the new workspace structure to make the group-level VSA also work for projects.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.
Related to #382494 (closed)
Edited by Adam Hegyi