Handle LinkML migration issue of `pydantic2linkml: Unable to translate the logic contained in the after validation function`

pydantic2linkml complains about not able to translate the logic in validation function as in

or via `grep -n -A1 "Unable to translate the logic contained in the after validation" dandischema/models.yaml`.

## Cause
These are the result of pydantic2linkml not able translate runtime logic in Pydantic validation functions to LinkML.

## Stats

The validation functions that are causing the complains:

| Function | Count | Lines in `models.yaml` the complain appears|
|----------|-------|-------|
| `AccessRequirements.open_or_embargoed` | 1 | 331 |
| `Contributor.ensure_contact_person_has_email` | 5 | 419, 423, 719, 732, 736 |
| `dandischema.models.BareAsset.digest_check` | 1 | 461 |
| `dandischema.models.DandiBaseModel.ensure_schemakey` | 1 | 658 |
| `dandischema.models.PropertyValue.ensure_value` | 1 | 703 |
| `pydantic.networks.EmailStr._validate` | 1 | 487 |
| `pydantic.types.ByteSize._validate` | 1 | 395 |
| `Resource.identifier_or_url` | 1 | 631 |

Total complains: 12

## Solution

The runtime logic in each Pydantic validation function has to be evaluated individually for translation.