Update javafx monorepo to v26-ea+16

Author: renovate[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ javafxplugin = '0.1.0'
 spring = '7.0.0'
 springframework-boot = '3.5.7'
 spring-dependency-management = '1.1.7'
-javafx = '26-ea+15'
+javafx = '26-ea+16'
 
 inject-api = '2.0.1'
 tech-units = '2.2.3'