devspace sync usage out-of-date

[baflo]

What happened?
The usage text of devspace sync -h seems to be out-of-date.

https://github.com/loft-sh/devspace/blob/12530f9b582c11837808ad5719960e677b8f5423/cmd/sync.go#L65-L77

What did you expect to happen instead?
Correct usage examples.

[alexandradragodan]

Hey, @baflo .

Thanks a lot for reporting this issue.
We're currently looking into it!

Keep you posted! 🙌