For making use of FB App v20 API, we need the latest JAR

The Facebook Java Business SDK for the Marketing API version v20.0 is not available on the Maven Central Repository (https://mvnrepository.com/artifact/com.facebook.business.sdk/facebook-java-business-sdk). According to the Facebook Marketing API changelog documentation (https://developers.facebook.com/docs/marketing-api/marketing-api-changelog#available-marketing-api-versions), this version should be available, but it is currently missing from the repository.