Have jenkins update workspace

[r-englund]

It would be nice if Jenkins could run the update workspaces as part of the pipeline.
There is almost always warnings when loading example workspaces. For example, when loading boron on the latest master you get

[r-englund]

This could be done in a similar way as we do with clang-format, with or without a flag to enable it

[petersteneteg]

I generally update all workspaces on every release.
But the goal it of course to have jenkins automatically do the entire release...