[#2029] Test against JDK 25 EA

Author: DavideD

.github/workflows/build.yml

@@ -174,6 +174,7 @@ jobs:
           - { name: "21", java_version_numeric: 21, jvm_args: '--enable-preview' }
           - { name: "23", java_version_numeric: 23, from: 'jdk.java.net', jvm_args: '--enable-preview' }
           - { name: "24-ea", java_version_numeric: 24, from: 'jdk.java.net', jvm_args: '--enable-preview' }
+          - { name: "25-ea", java_version_numeric: 25, from: 'jdk.java.net', jvm_args: '--enable-preview' }
     steps:
       - name: Checkout ${{ inputs.branch }}
         uses: actions/checkout@v2