bump build JDK version to 25

Author: tnaskali

.github/workflows/build-image.yml

@@ -29,7 +29,7 @@ jobs:
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 24
+          java-version: 25
 
       - name: Cache Maven packages
         uses: actions/cache@v4

.github/workflows/build-native-image.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up GraalVM version
         uses: graalvm/setup-graalvm@v1
         with:
-          java-version: '24'
+          java-version: '25'
           distribution: 'graalvm'
           components: 'native-image'
           github-token: ${{ secrets.GITHUB_TOKEN }}