Use bundled wrapper script for pull worker rather than duplicating logic in janitor_worker.

MR: !85


Signed-off-by: Mattia Rizzolo <mattia@debian.org>

bin/janitor_worker.sh

@@ -4,11 +4,9 @@ set -e
 
 WORKSPACE=/srv/janitor/debian-janitor
 
-export BRZ_PLUGINS_AT=debian@$WORKSPACE/breezy-debian
-export PYTHONPATH=$WORKSPACE:$WORKSPACE/breezy:$WORKSPACE/silver-platter:$WORKSPACE/lintian-brush:$WORKSPACE/dulwich:$WORKSPACE/python-debian/lib:$WORKSPACE/debmutate:$WORKSPACE/ognibuild:$WORkSPACE/upstream-ontologist:$WORKSPACE/buildlog-consultant
 export SBUILD_CONFIG=/srv/janitor/sbuildrc
-export AUTOPKGTEST=$WORKSPACE/autopkgtest-wrapper
-python3 -m janitor.pull_worker \
+
+$WORKSPACE/pull_worker.sh \
     --base-url=https://janitor.debian.net/api/ \
     --build-command="sbuild -A -v -c unstable-amd64-sbuild" \
     --credentials=/srv/janitor/janitor.creds.json