Prepare changelog for release

Gbp-Dch: Ignore
5 jobs for debian/2.3.1-8 in 4 minutes and 53 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #98944
build

00:02:18

 
  Test
passed #98947
autopkgtest

00:01:42

passed #98946
lintian

00:01:42

passed #98948
piuparts

00:02:34

passed #98945
reprotest

00:02:16