Remove Nick as the listed maintainer on the package

There are no individual maintainers listed on IOHK packages, so this is
against the policy.

Author: lehins

cuddle.cabal

@@ -16,7 +16,7 @@ description:
 license: Apache-2.0
 license-file: LICENSE
 author: IOG Ledger Team
-maintainer: [email protected], [email protected]
+maintainer: [email protected]
 copyright: 2025 Input Output Global Inc (IOG)
 category: Codec
 build-type: Simple