Updated debian changelog for version 0.35.0

debian/changelog

+swh-storage (0.35.0-1~swh1) unstable-swh; urgency=medium
+
+  * New upstream release 0.35.0     - (tagged by Antoine R. Dumont
+    (@ardumont) <ardumont@softwareheritage.org> on 2021-07-28 10:36:09
+    +0200)
+  * Upstream changes:     - v0.35.0     - Implement storage of the
+    ExtID.extid_version field
+
+ -- Software Heritage autobuilder (on jenkins-debian1) <jenkins@jenkins-debian1.internal.softwareheritage.org>  Wed, 28 Jul 2021 08:43:06 +0000
+
 swh-storage (0.34.0-1~swh1) unstable-swh; urgency=medium
 
   * New upstream release 0.34.0     - (tagged by Vincent SELLIER