Update pekko-slf4j, pekko-stream, ... to 1.4.0#439

scala-steward wants to merge 2 commits intoReactiveMongo:masterReactiveMongo/ReactiveMongo-Streaming:masterfrom

scala-steward:update/pekko-slf4j-1.4.0scala-steward/ReactiveMongo-Streaming:update/pekko-slf4j-1.4.0Copy head branch name to clipboard