Change logs for clipper source package in Jammy

clipper (2.1.20201109-1) unstable; urgency=medium

  [ Picca Frédéric-Emmanuel ]
  * Use debhelper-compat instead of debian/compat.

  [ Debian Janitor ]
  * Bump debhelper from old 11 to 12.
  * Drop unnecessary dependency on dh-autoconf.

  [ Andrius Merkys ]
  * New upstream version 2.1.20201109
  * Updating debian/copyright.
  * Adding 'Rules-Requires-Root: no'.
  * Updating my email.

 -- Andrius Merkys <email address hidden>  Tue, 17 Nov 2020 11:51:00 -0500