Issue #3073476 by shimpy, jhodgdon, nitesh624, prabha1997, quietone, alonaoneill, catch, dwebpoint, alexpott, webchick: Convert migrate, migrate_drupal, migrate_drupal_multilingual, migrate_drupal_ui module hook_help() to topic(s)

Issue #3042745 by dwebpoint, Berdir, emacoti, jefftrnr, Wim Leers, alexpott, voleger, sjhuda, bnjmnm: Remove group @legacy from jsonapi tests and fix deprecation messages