Update CITATION.cff

Author: geopayme

CITATION.cff

@@ -6,7 +6,7 @@ doi: "10.5281/zenodo.TODO"  # Replace with real DOI once published
 date-released: 2024-05-12
 authors:
   - family-names: Valamontes
-    given-names: Antonis
+    given-names: Antonios
     affiliation: Kapodistrian Academy of Science
     orcid: https://orcid.org/0000-0002-1825-0097
 license: "Other (Open, Non-Commercial)"