To update Open WebUI Pipelines

1. edit the "_service" file with the correct version
2. run "osc service mr" to generate the new source tarballs
3. run "rm *.gz" to remove the transient source tarballs used for cargo
   vendoring only.
4. update "python-open-webui-pipelines.spec" with the new version
5. add the new obscpio if necessary. i.e. "osc add *.obscpio"
6. remove the old obscpio if necessary.
7. test to make sure the package builds fine. i.e. "osc build". If build
   fails for whatever reasons, we'll need to make special exceptions in
   the spec file case-by-case unfortunately.
8. commit the changes