this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Dmitry Shachnev <email@example.com>
Date: Wed Sep 15 18:04:14 2021 +0300
Delete install file for removed python3-pyqt5.qtchart-dbg package.