Bug#1030143: buildstream is not compatible with python 3.11

[Sudip Mukherjee]

Package: buildstream
Version: 1.6.8-1
Severity: grave
Tags: upstream
Justification: renders package unusable
X-Debbugs-Cc: sudipm.mukherjee at gmail.com

Dear Maintainer,

I have been using buildstream v1.6.8 today to build an image and had a
failure with flex.bst from freedesktop-sdk. I had a chat with the maintainers,
its a known bug and I was pointed to the upstream issue:
https://github.com/apache/buildstream/issues/1758

Since Bookworm now has python3.11, that makes buildstream unusable.

I will be happy to give any logs needed or to give steps to reproduce.


-- 
Regards
Sudip