Updated debian changelog for version 6.0.1

debian/changelog

+swh-model (6.0.1-1~swh1) unstable-swh; urgency=medium
+
+  * New upstream release 6.0.1     - (tagged by Antoine R. Dumont
+    (@ardumont) <ardumont@softwareheritage.org> on 2022-04-01 10:21:34
+    +0200)
+  * Upstream changes:     - v6.0.1     - Fix documentation papercuts
+
+ -- Software Heritage autobuilder (on jenkins-debian1) <jenkins@jenkins-debian1.internal.softwareheritage.org>  Fri, 01 Apr 2022 08:25:24 +0000
+
 swh-model (6.0.0-1~swh1) unstable-swh; urgency=medium
 
   * New upstream release 6.0.0     - (tagged by Valentin Lorentz