This bug was fixed in the package lintian - 2.104.0ubuntu3
--------------- lintian (2.104.0ubuntu3) impish; urgency=medium
* Add zst as allowed compression for .deb & .udeb. Although we don't actually ship udeb package that supports zst. LP: #1923845
-- Dimitri John Ledkov <email address hidden> Tue, 15 Jun 2021 10:42:12 +0100
This bug was fixed in the package lintian - 2.104.0ubuntu3
---------------
lintian (2.104.0ubuntu3) impish; urgency=medium
* Add zst as allowed compression for .deb & .udeb. Although we don't
actually ship udeb package that supports zst. LP: #1923845
-- Dimitri John Ledkov <email address hidden> Tue, 15 Jun 2021 10:42:12 +0100