Update jetty-ee8-websocket-javax-server to 12.0.15#1300

scala-steward wants to merge 1 commit intoUdashFramework:masterUdashFramework/udash-core:masterfrom

scala-steward:update/jetty-ee8-websocket-javax-server-12.0.15scala-steward/udash-core:update/jetty-ee8-websocket-javax-server-12.0.15Copy head branch name to clipboard