Replace Java 24-ea builds with 24

Author: garydgregory

Diff for: .github/workflows/maven.yml

@@ -34,7 +34,7 @@ jobs:
           - java: 23
             experimental: true
             os: ubuntu-latest
-          - java: 24-ea
+          - java: 24
             experimental: true
             os: ubuntu-latest
           - java: 25-ea