Merge version 1.21.20+rpi1 and 1.21.21 to produce 1.21.21+rpi1

diff --cc debian/changelog
index 2794da92a77597101751bf662fee10e8cb8b169c,7a30489816933a78225553a20486b465acd2b39b..9afe144616f843d6038b0a6353295edc9f8fc41e
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,13 -1,13 +1,24 @@@
- dpkg (1.21.20+rpi1) bookworm-staging; urgency=medium
++dpkg (1.21.21+rpi1) bookworm-staging; urgency=medium
 +
 +  [changes brought forward from 1.20.5+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Sun, 02 Aug 2020 12:08:02 +0000]
 +  * Hack up Vendor.pm so it doesn't fail
 +    (see https://lists.debian.org/debian-dpkg/2020/08/msg00004.html )
 +
 +  [changes introduce in 1.21.17+rpi1 by Peter Michael Green]
 +  * disable testsuite.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Wed, 15 Feb 2023 04:55:46 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Mon, 13 Mar 2023 11:46:22 +0000
++
+ dpkg (1.21.21) unstable; urgency=medium
+ 
+   * Architecture support:
+     - Restore "arch: Add support for loong64 CPU". Closes: #1028654
+   * Localization:
+     - Update Dutch header boilerplate with an actual copyright line.
+     - Update French scripts translation.
+       Thanks to Sébastien Poher <sebastien@volted.net>.
+ 
+  -- Guillem Jover <guillem@debian.org>  Sat, 25 Feb 2023 04:39:29 +0100
  
  dpkg (1.21.20) unstable; urgency=medium