Notify and follow up dateCreated bug on HAL

Hal is sending the wrong date in the metadata. see deposit:

https://archive.softwareheritage.org/browse/revision/8bacb8be80f977e771c5deea4486560ed4fc4199/ https://hal.archives-ouvertes.fr/hal-01718131v1

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Migrated from T1636 (view on Phabricator)