wrong link in some special cases (repository and NL)

When a repository item and a national licence item are merged together, although they have different doi's, the linking is sometimes wrong, because it takes the first doi, not the publisher doi.

One example https://www.swissbib.ch/Search/Results?lookfor=nationallicenceoxford-10.1093%2Fywes%2Fmau019&type=AllFields&limit=20&sort=relevance

The solution could be to adapt getNationalLicenceData() in module/Swissbib/src/Swissbib/RecordDriver/SolrMarc.php to take the doi from the 035 instead of the 024 marc field