update copyright

[skip ci]

Author: jgpc42

README.md

@@ -131,7 +131,7 @@ The tests can also be run against all supported Java versions (via [`docker`][do
 
 ### License
 
-Copyright © 2017-2023 Justin Conklin
+Copyright © 2017-2024 Justin Conklin
 
 Distributed under the Eclipse Public License, the same as Clojure.