ci: test against Java v24, not v25

Author: double-beep

.github/workflows/maven.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        java: [ 17, 21, 25 ]
+        java: [ 17, 21, 24 ]
 
     steps:
     - uses: actions/checkout@v5