[ResourceBundle] Using MongoRegex in DocumentRepository criteria

| Q             | A
| ------------- | ---
| Bug fix?      | yes (See Note)
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | None
| License       | MIT
| Doc PR        | None

Note: The criteria don't care about empties values. (See 99502cd6b7e927840299589a6d67d069520c58c7 for ORM)