Use Java 24 because, apparently, 23 is no longer supported by the setup action

Author: miguno

.github/workflows/maven.yml

@@ -39,7 +39,7 @@ jobs:
         uses: oracle-actions/setup-java@v1 # https://github.com/oracle-actions/setup-java
         with:
           website: jdk.java.net
-          release: 23
+          release: 24
 
       - name: Print Java version
         run: java -version