fix: use correct platform paths for artifacts in dryRunResume

[VerteDinde]

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Fixes a path issue within publisher -> dryRunResume. If a dry run occurred on one platform (e.g. Windows), the path slashes will retain their original formatting, even if the resume action is called on a platform with different path syntax (e.g. Linux).

This PR normalizes the path formats to fix whatever format is needed for dryRunResume.

[dsanders11]

Looks like this didn't fix the issue over on Fiddle. I think the normalized path needs to be updated in makeResult, so that publishers only see normalized paths. Otherwise each publisher implementation will have to do it themselves.