Comment 40 for bug 2012596

If I remove the contents in provisioningserver/utils/deb.py

to

// return string instead of using apt_pkg library
def get_deb_versions_info(apt_pkg=None) -> Optional[DebVersionsInfo]:
    ...
    return DebVersionsInfo(
        current=DebVersion(
            version='1:3.2.10-12065-g.0093bc7ec-0ubuntu1~20.04.1',
            origin='http://ppa.launchpad.net/maas/3.2/ubuntu/ focal/main'
        ),
        update=None
    )

memory is not leaking.