Update migrated repositories' issues/comments/prs poster id if user has a github external user saved (#7751)
* update migrated issues/comments when login as github
* add get userid when migrating or login with github oauth2
* fix lint
* add migrations for repository service type
* fix build
* remove unnecessary dependencies on migrations
* add cron task to update migrations poster ids and fix posterid when migrating
* fix lint
* fix lint
* improve code
* fix lint
* improve code
* replace releases publish id to actual author id
* fix import
* fix bug
* fix lint
* fix rawdata definition
* fix some bugs
* fix error message
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