Fix credo issues

.credo.exs

lib/eventos/actors/actors.ex

lib/eventos/events/comment.ex

lib/eventos_web/controllers/activity_pub_controller.ex

lib/eventos_web/controllers/event_controller.ex

lib/eventos_web/http_signature.ex

lib/eventos_web/views/activity_pub/actor_view.ex

lib/mix/tasks/create_bot.ex

lib/service/activity_pub/activity_pub.ex

lib/service/activity_pub/transmogrifier.ex

lib/service/activity_pub/utils.ex

lib/service/federator.ex

lib/service/http_signatures/http_signatures.ex

lib/service/streamer.ex

lib/service/web_finger/web_finger.ex

lib/service/xml_builder.ex

test/support/factory.ex