Update Java version to 17 for publishing

Author: daniel-larraz

.github/workflows/gradle-publish.yml

@@ -17,7 +17,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 8
+          java-version: 17
       - name: Publish to the Maven Central Repository
         run: gradle publish
         env: