Use direct references for configuration variables (part 4). (#10893)

changelog.d/10893.misc

synapse/api/urls.py

synapse/app/_base.py

synapse/app/admin_cmd.py

synapse/app/generic_worker.py

synapse/app/homeserver.py

synapse/app/phone_stats_home.py

synapse/config/logger.py

synapse/federation/transport/server/_base.py

synapse/groups/groups_server.py

synapse/handlers/auth.py

synapse/handlers/oidc.py

synapse/handlers/profile.py

synapse/http/matrixfederationclient.py

synapse/push/httppusher.py

synapse/rest/client/login.py

synapse/rest/consent/consent_resource.py

synapse/rest/key/v2/local_key_resource.py

synapse/rest/key/v2/remote_key_resource.py

synapse/rest/media/v1/media_repository.py