Latest version of com.typesafe.akka:akka-slf4j_2.12
https://javadoc.io/doc/com.typesafe.akka/akka-slf4j_2.12
Current version 2.6.7
https://javadoc.io/doc/com.typesafe.akka/akka-slf4j_2.12/2.6.7
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.typesafe.akka/akka-slf4j_2.12/2.6.7/package-list