[Debian-med-packaging] Bug#1050144: emperor: FTBFS with pandas 2.0

[Rebecca N. Palmer]

Package: src:emperor
Version: 1.0.3+ds-7
Control: block 1043240 by -1

emperor fails to build with pandas 2.0, currently in experimental.

Build log:
https://launchpadlibrarian.net/682917876/buildlog_ubuntu-mantic-amd64.emperor_1.0.3+ds-7_BUILDING.txt.gz

A common source of failures is that pandas.util.testing has been renamed
to pandas.testing.  Both names were available in all 1.x versions (and
hence in Debian stable and oldstable), so Debian packages that were
using this can immediately switch unconditionally.