Merge branch 'features/add-credo-to-ci' into 'develop'

.credo.exs

.gitlab-ci.yml

lib/mix/tasks/pleroma/relay.ex

lib/mix/tasks/pleroma/uploads.ex

lib/mix/tasks/pleroma/user.ex

lib/pleroma/PasswordResetToken.ex

lib/pleroma/activity.ex

lib/pleroma/application.ex

lib/pleroma/captcha/captcha.ex

lib/pleroma/captcha/kocaptcha.ex

lib/pleroma/clippy.ex

lib/pleroma/config/deprecation_warnings.ex

lib/pleroma/emoji.ex

lib/pleroma/filter.ex

lib/pleroma/flake_id.ex

lib/pleroma/formatter.ex

lib/pleroma/gopher/server.ex

lib/pleroma/html.ex

lib/pleroma/instances/instance.ex

lib/pleroma/notification.ex