Add missing "spring-boot-starter-batch-jdbc-test" to the Gradle build

Author: mhalbritter

settings.gradle

@@ -213,6 +213,7 @@ include "starter:spring-boot-starter-aspectj"
 include "starter:spring-boot-starter-aspectj-test"
 include "starter:spring-boot-starter-batch"
 include "starter:spring-boot-starter-batch-jdbc"
+include "starter:spring-boot-starter-batch-jdbc-test"
 include "starter:spring-boot-starter-batch-test"
 include "starter:spring-boot-starter-cache"
 include "starter:spring-boot-starter-cache-test"