propellor 5.9.1 released with these changes

  • Apt: Debian has changed the name of the suite for testing security updates from testing to testing-security.
  • Apt: Also the suite for stable releases from bullseye on will be suffixed with "-security".
  • Apt.update: Pass --allow-releaseinfo-change when updating Unstable or Testing, so that code name changes that happen in those suites during a stable release don't prevent updating the rolling suites.
  • Systemd.machined: Fix a bug that caused the systemd-container package to not be installed when used with Debian buster.