refactor: extract and update now decoupled (#5835)

lib/workers/common.ts

lib/workers/pr/index.spec.ts

lib/workers/pr/index.ts

lib/workers/repository/extract/index.ts

lib/workers/repository/index.spec.ts

lib/workers/repository/index.ts

...rkers/repository/process/__snapshots__/index.spec.ts.snap

lib/workers/repository/process/extract-update.spec.ts

lib/workers/repository/process/extract-update.ts

lib/workers/repository/process/index.spec.ts

lib/workers/repository/process/index.ts