Update _data/authors.yml

Co-authored-by: Kelvin Bui <150134371+tienquocbui@users.noreply.github.com>

Author: ktoso

_data/authors.yml

@@ -564,7 +564,7 @@ ahmedelrefaey:
   github: a7medev
   about: Ahmed is a Google Summer of Code 2025 contributor, where he worked on improving the display of Swift documentation during code completion in SourceKit-LSP and VS Code.
 
-tien:
+kelvin:
   name: Kelvin Bui
   email: tien-quoc.bui@epita.fr
   github: https://github.com/tienquocbui