Bug#1003261: bullseye-pu: package postfix/3.5.6-1

[Scott Kitterman <debian@kitterman.com>]

Package: release.debian.org
Severity: normal
Tags: bullseye
User: release.debian.org@packages.debian.org
Usertags: pu

I've put together my usual postfix post-release update.  Because I'm
behind, it's rather larger than usual.  Also, a number of packaging bugs
that apply to bullseye have been recently fixed in Bookworm, so the low
risk changes there have been backported too.

The diff is rather large, so I don't include it in the original bug
report to increase the chances this makes it to the mailing list.

Also, as usual, I have this update ready to upload and running in
production locally.

Scott K