Sync with v2021dev1 to bring the python2 package back

To fully revive hotdoc-0.8 as needed to build our API documentation the python-dbusdeviation package is needed as HotDoc 0.8 is still based on Python2.

debian/changelog

+dbus-deviation (0.6.0-1co1) apertis; urgency=medium
+
+  * Re-enable python2 support in this package due to
+    hotdoc-dbus-extension-0.8 depends on it and was required to build
+    Apertis Specific packages.
+
+ -- Andrew Lee (李健秋) <andrew.lee@collabora.co.uk>  Wed, 18 Dec 2019 17:40:09 +0800
+
 dbus-deviation (0.6.0-1) unstable; urgency=medium
 
   * Initial release.
 
  -- Andrej Shadura <andrewsh@debian.org>  Tue, 12 Nov 2019 12:56:15 +0100
+
+dbus-deviation (0.4.0-0co2) apertis; urgency=medium
+
+  * Run wrap-and-sort -bask.
+  * d/control: Remove ancient X-Python-Version field.
+  * d/copyright: Use https protocol in Format field.
+  * Use debhelper-compat instead of debian/compat.
+  * d/control: Deprecating priority extra as per policy 4.0.1.
+  * Bump debhelper from old 9 to 12.
+  * Build with pybuild.
+  * Refresh the patch.
+  * Build a Python 3 package.
+
+ -- Andrej Shadura <andrew.shadura@collabora.co.uk>  Fri, 20 Sep 2019 08:30:59 +0200
+
+dbus-deviation (0.4.0-0co1) 16.03; urgency=medium
+
+  * Initial release. (Apertis: T1146)
+
+ -- Héctor Orón Martínez <hector.oron@collabora.co.uk>  Thu, 25 Feb 2016 23:38:18 +0100