On PyPI, on the sidebar I see:

Note the link on my name is @tlambert03 email!
Seems like this is partially a known issue:
pypi/warehouse#12877
Not sure why my name is picked, rather than the first on the list...
napari-hub also implies I'm the only author:
https://www.napari-hub.org/plugins/napari-omero
Looks like it works if you (ab)use the old author field and provide multiple names, see:
https://www.napari-hub.org/plugins/napari-nanopyx
Anyhow, I guess not much we can do?