Fix tests and update deps. (#7) Fix tests and update deps. * Body hash should not be included with Access Token or Request Token requests. https://datatracker.ietf.org/doc/html/draft-eaton-oauth-bodyhash-00#when_to_include Partial revert of 0a10983a3c29e474579f353421b3c5f7353bd534 * Fix transport_test.go * Update deps. * Add workflow yaml. Based on dghubble master. * Add cloudbuild.yaml