d/changelog: generate entry for 1.8.6-1 unstable

New changelog entry.

Git-Dch: Ignore
Signed-off-by: Arturo Borrero Gonzalez <arturo@debian.org>

debian/changelog

+iptables (1.8.6-1) unstable; urgency=medium
+
+  * [9caffe9] New upstream version 1.8.6
+  * [424bda6] d/patches: drop 0000-upstream-fix-xtables-translate.patch
+  * [6436087] src:iptables: drop unused manual pages
+
+ -- Arturo Borrero Gonzalez <arturo@debian.org>  Mon, 09 Nov 2020 11:38:43 +0100
+
 iptables (1.8.5-3) unstable; urgency=medium
 
   * [2d587e5] src:iptables: bump build-dep version on libnftnl to 1.1.6