An advocacy group does not have a claim against a ridesharing service it accuses of discriminating against people who use motorized wheelchairs, a federal appeals court held Tuesday.The 7th U.S. Circuit Court of Appeals declined to revive a lawsuit Access Living of Metropolitan Chicago filed against Uber Technologies Inc. under the Americans with Disabilities Act.Access Living provides people with disabilities with such services as training on independent living skills. It also advocates for equal access for those with …