Update scalafmt-core to 3.8.6#299

mergify[bot] merged 1 commit intoscalapb:masterscalapb/scalapb-grpcweb:masterfrom

scala-steward:update/scalafmt-core-3.8.6scala-steward/scalapb-grpcweb:update/scalafmt-core-3.8.6Copy head branch name to clipboard