chore: build with Java 25 (but still release 8)

Author: slandelle

.github/workflows/ci.yaml

@@ -14,8 +14,8 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          distribution: "adopt" # See 'Supported distributions' for available options
-          java-version: "11"
+          distribution: "zulu"
+          java-version: "25"
       - name: Cache Maven packages
         uses: actions/cache@v4
         with: