Fix: Update CI to JDK 11 for Jakarta EE 9+ compatibility

Jakarta EE 9+ dependencies require Java 11+.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: Hermes Jimenez

.github/workflows/publish-maven.yml

@@ -13,10 +13,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Set up JDK 8
+      - name: Set up JDK 11
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '11'
           distribution: 'temurin'
           cache: maven