docs: Adding cvarni to citation

.zenodo.json

@@ -112,11 +112,15 @@
       "affiliation": "CERN / University of Amsterdam",
       "name": "Stephen Nicholas Swatman",
       "orcid": "0000-0002-3747-3229"
-    }
+    },
     {
       "affiliation": "CERN / TU Wien",
       "name": "Felix Russo",
       "orcid": "0009-0005-8975-2245"
+    },
+    {
+      "affiliation": "UC Berkeley",
+      "name": "Carlo Varni"
     }
   ],
   "access_right": "open",

AUTHORS

@@ -21,3 +21,4 @@ The following people have contributed to the project (in alphabetical order):
 - Andreas Stefl, CERN, TU Wien
 - Stephen Nicholas Swatman, CERN, University of Amsterdam
 - Roman Urmanov, Weizmann Institute of Science
+- Carlo Varni, UC Berkeley

CITATION.cff

@@ -89,6 +89,9 @@ authors:
   family-names: Russo
   affiliation: CERN / TU Wien
   orcid: https://orcid.org/0009-0005-8975-2245
+- given-names: Carlo
+  family-names: Varni
+  affiliation: UC Berkeley
 version: 10.0.0
 date-released: 2021-07-28
 repository-code: https://github.com/acts-project/acts