[Azure sym server] Upload the DLLs

[sebmarchand]

Upload the PE files generated by the ArcCore build to the Azure symbol server in addition to the PDBs.

Also make the symbol search pattern explicit as the default wasn't gathering all desired files.

[tristanlabelle]

Trial run here: https://github.com/thebrowsercompany/swift-build/actions/runs/8332881460

[compnerd]

I'm fine with this conceptually, but I think that I want to see if we can collapse these into a single run. That would reduce the overall impact of the step as we can upload more items in parallel/

[compnerd]

Doing a collapsed variant run at https://github.com/thebrowsercompany/swift-build/actions/runs/8333794115

[compnerd]

Well, this is unfortunate, both forms fail. We can take a look at this later I suppose, merging this to avoid blocking.

[tristanlabelle]

@compnerd We can't use a single invocation because microsoft/action-publish-symbols#32