[MM-55595] Use annotated logger in search layer (#25468)

server/channels/app/slashcommands/command_echo.go

@@ -90,7 +90,7 @@ func (*EchoProvider) DoCommand(a *app.App, c request.CTX, args *model.CommandArg
 		time.Sleep(time.Duration(delay) * time.Second)
 
 		if _, err := a.CreatePostMissingChannel(c, post, true, true); err != nil {
-			mlog.Error("Unable to create /echo post.", mlog.Err(err))
+			c.Logger().Error("Unable to create /echo post.", mlog.Err(err))
 		}
 	})