osinfo-db has been added to homebrew-core and conflicts with this repo's version

[cpick]

I'm a little new to homebrew, so this description may not be completely accurate, but I believe:

1. The "homebrew-core/osinfo-db" package was recently added.
2. The "homebrew-core/libosinfo" package was then changed to depend on this new "homebrew-core/osinfo-db" package.
3. The "jeffreywildman/virt-manager" package depends on "homebrew-core/libosinfo" and its own "jeffreywildman/osinfo-db".

This causes installing "jeffreywildman/virt-manager" to fail due to the conflicting "homebrew-core/osinfo-db" and "jeffreywildman/osinfo-db" packages which are both (transitive) dependencies:

==> Installing dependencies for libosinfo: osinfo-db and usb.ids
Error: osinfo-db is already installed from jeffreywildman/virt-manager!
Please `brew uninstall osinfo-db` first."

[jouve]

fixed by #166