The docs publish job is broken. The gist of it is [1].
The full stack trace is [2].
This needs some fixing.
[1]
```
make[3]: Entering directory '/home/jenkins/workspace/DDOC/publish/swh-fuse/docs/images'
plantuml -Tpdf arch-container.puml
java.lang.ClassNotFoundException: org.apache.batik.apps.rasterizer.SVGConverter
```
[2] https://jenkins.softwareheritage.org/view/all/job/DDOC/job/publish/1136/console