Bug 1598186 - Upgrade diffoscope to a more recent version. r=froydnj

This has the side effect of updating all debian10-based docker images
(except the ones based on debian10-test)

Differential Revision: https://phabricator.services.mozilla.com/D54069

--HG--
extra : moz-landing-system : lando

taskcluster/ci/docker-image/kind.yml

@@ -164,9 +164,9 @@ jobs:
         symbol: I(deb10-raw)
         definition: debian-raw
         args:
-            BASE_IMAGE: debian:buster-20190708
+            BASE_IMAGE: debian:buster-20191014
             DIST: buster
-            SNAPSHOT: '20190708T222404Z'
+            SNAPSHOT: '20191014T205056Z'
     debian10-packages:
         symbol: I(deb10-pkg)
         definition: debian-packages

taskcluster/docker/diffoscope/Dockerfile

@@ -13,7 +13,7 @@ RUN apt-get install \
       bzip2 \
       curl \
       enjarify \
-      diffoscope \
+      diffoscope/buster-backports \
       jsbeautifier \
       libc++abi1 \
       locales \