TT#113650 Rebuild docker to include newer jenkins-debian-glue package

The package was updated to support pycodestyle in bullseye so we need
to rebuild the docker image now.

Change-Id: Id3b22ff1824225072e77dc1e4237acfd540e3c00
(cherry picked from commit 8a72eccede)

t/tap-tests-docker/Dockerfile

@@ -5,7 +5,7 @@ FROM docker.mgm.sipwise.com/sipwise-bullseye:latest
 # is updated with the current date. It will force refresh of all
 # of the base images and things like `apt-get update` won't be using
 # old cached versions when the Dockerfile is built.
-ENV REFRESHED_AT 2021-08-02
+ENV REFRESHED_AT 2021-08-11
 
 RUN apt-get update && apt-get install --assume-yes --no-install-recommends \
   binutils \