Update changelog for 0.5.6-2 release

8 jobs for debian/0.5.6-2 in 6 minutes and 59 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Build
passed #254716
build

00:03:17

 
  Test
passed #254721
autopkgtest

00:03:32

passed #254722
blhc

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passed #254720
lintian

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passed #254723
piuparts

00:03:39

passed #254719
reprotest

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passed #254718
test-build-all

00:03:13

passed #254717
test-build-any

00:02:22