The package is severely out of date with respect to the Debian
Policy. Latest version is 4.7.0
and your package only follows
3.9.8...
The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
In debian/watch no matching files for watch line https://github.com/openlightingproject/ola/releases .*/?ola-(\d{1,2}\.\d{1,2}.\d{1,2})\.tar\.gz
testing migration
This package will soon be part of the auto-protobuf transition. You might want to ensure that your package is ready for it.
You can probably find supplementary information in the
debian-release
archives or in the corresponding
release.debian.org
bug.