[Qbs] Branch 2.1 created

[Christian Kandeler]

Hi,

we branched off Qbs 2.1. Scheduled release date for
version 2.1.0 is end of July  (together with Qt Creator 11.0).
We recommend users to try this branch with their projects and report 
back any
new problems they find; see 
https://lists.qt-project.org/pipermail/qbs/2023-April/003083.html as to 
why this is particularly relevant this time.
Contributors are requested to push bug fixes and small, zero-risk
improvements to this branch, while features continue to go to master.
Patches currently under review can be moved if they are reasonably close to
finished.


Christian