Also use JDK 16 for Release Workflow

Author: WalkerKnapp

.github/workflows/release.yml

@@ -12,10 +12,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up JDK 8
+      - name: Set up JDK 16
         uses: actions/setup-java@v1
         with:
-          java-version: 8
+          java-version: 16
 
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew