runner: Exclude lots of non-fd.o upstream images as well

I don't know whether or not this is actually a good idea. On one hand, if we exclude them, then we cut runtime down, which means that our runners are more efficiently utilised, which means that we need fewer runners to serve our jobs, which means we have a better chance of hitting local cache.

On the other hand, the upstream images don't cost us anything to pull, and are competing with space for local images.

I think the best thing to do would be to see the effect after a week or so, and whether or not we have space for them without jettisoning lots of local images.

Signed-off-by: Daniel Stone daniels@collabora.com