Use smaller Mods example from DNB oai #213

Replaces #217

Author: TobiasNx

resources/examples/OAI-PMH+MODS+to+JSON

@@ -1 +1 @@
-https://metafacture.org/playground/?data=&flux=%22https%3A//duepublico2.uni-due.de/oer/oai%22%0A%7C+open-oaipmh%28metadataPrefix%3D%22mods%22%29%0A%7C+decode-xml%0A%7C+handle-generic-xml%0A%7C+encode-json%28prettyPrinting%3D%22true%22%29%0A%7C+print%3B
+https://metafacture.org/playground/?flux=%22https%3A//services.dnb.de/oai/repository%22%0A%7C+open-oaipmh%28metadataPrefix%3D%22mods-xml%22%2C+dateFrom%3D%222025-05-01%22%2C+dateUntil%3D%222025-05-05%22%2C+setSpec%3D%22dnb-all%3Aonline%3Adissertations%3Asg300%22%29%0A%7C+decode-xml%0A%7C+handle-generic-xml%0A%7C+encode-json%28prettyPrinting%3D%22true%22%29%0A%7C+print%3B%0A