Add Authorization header to inventory service HTTP requests

[mturley]

https://bugzilla.redhat.com/show_bug.cgi?id=1929140

Per @jortel, we'll need to set the Authorization: Bearer <token> header on all requests to the inventory service, like we do in the kube-client here: https://github.com/konveyor/lib-ui/blob/main/src/modules/kube-client/resources/common.ts#L152

[mturley]

This is actually already implemented in the useAuthorizedFetch hook (see https://github.com/mturley/forklift-ui/blob/main/src/app/queries/fetchHelpers.ts#L28). I missed that when the BZ was being opened.