Run ObjectValidator as part of dry run.

[justinlittman]

closes #4416

Why was this change made? 🤔

Avoid unexpected migration failures.

How was this change tested? 🤨

⚡ ⚠ If this change has cross service impact, including data writes to shared file systems, run integration tests and/or test in [stage|qa] environment, in addition to specs. ⚡

QA

[justinlittman]

$ RAILS_ENV=production bin/migrate-cocina Migrators::Folio
[DEPRECATION] Committee: please set parameter_overwite_by_rails_rule = false because we'll change default value to "true" in next major version.
dryrun Dro [▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣] (100% (2243/2243), rate: 1014.81/s, mean rate: 592.63/s,  3s total, ETA: 13:52:29)
dryrun Collection [▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣] (100% (486/486), rate: 1047.83/s, mean rate: 1047.83/s,  0s total, ETA: 13:52:30)
dryrun AdminPolicy [▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣▣] (100% (192/192), rate: 4667.01/s, mean rate: 4667.01/s,  0s total, ETA: 13:52:30)
$ grep ERROR migrate-cocina.csv
3807,druid:cy002pz9778,ERROR,"File hierarchy present, but content type is not file"
3806,druid:hz068xz9286,ERROR,"File hierarchy present, but content type is not file"
3809,druid:kv721dz6653,ERROR,"File hierarchy present, but content type is not file"
3808,druid:sm696pt6363,ERROR,"File hierarchy present, but content type is not file"
3805,druid:vr453vw0218,ERROR,"File hierarchy present, but content type is not file"
3927,druid:xj862qt3229,ERROR,"File hierarchy present, but content type is not file"