[flyctl-bot] Update docs from flyctl (#1901)

Co-authored-by: Fly.io CI <[email protected]>

flyctl/cmd/fly_launch.md

@@ -9,6 +9,7 @@ fly launch [flags]
 
 ~~~
       --attach                           Attach this new application to the current application
+      --auto-stop string                 Automatically suspend the app after a period of inactivity. Valid values are 'off', 'stop', and 'suspend (default "stop")
       --build-arg stringArray            Set of build time variables in the form of NAME=VALUE pairs. Can be specified multiple times.
       --build-only                       Build but do not deploy
       --build-secret stringArray         Set of build secrets of NAME=VALUE pairs. Can be specified multiple times. See https://docs.docker.com/engine/reference/commandline/buildx_build/#secret