Use Java 17 for GH action build.

Author: meistermeier

.github/workflows/spring-batch-neo4j.yml

@@ -12,10 +12,10 @@ jobs:
     steps:
       - name: Checkout source code
         uses: actions/checkout@v2
-      - name: Set up JDK 1.8
+      - name: Set up JDK 17
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 17
       - name: Build with Maven
         run: mvn -B package --file pom.xml
         working-directory: spring-batch-neo4j