Update release.yml

Author: lucaneg

.github/workflows/release.yml

@@ -11,10 +11,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 8
+    - name: Set up JDK 11
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 11
     - name: Grant execute permission for gradlew
       run: chmod +x lisa/gradlew
     - name: Publish artifact