ci: update ci template to JDK 25 (#3920)

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Fixes #<issue_number_goes_here> ☕️

Author: mpeddada1

hermetic_build/library_generation/owlbot/templates/java_library/.github/workflows/ci.yaml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [11, 17, 21, 24]
+        java: [11, 17, 21, 25]
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4