Update outputed code coverage report directory to be in the esm built folders

[hl662]

Stemming from #7165

Copying the reports directory file path from our default .nycrc into our vitest configs. We want to update those file paths to point to our esm paths. This will likely require updating our pipeline yamls where we publish the test results, among other configuration places.

(We don't need a temp-dir, vitest cleans up the old coverages by default