Bug: results get outputted after scanning has finished.

[YamatoSecurity]

@fukusuket This is low priority but if you have time, could you take a look at it?

Command: ./target/release/hayabusa csv-timeline -d ../hayabusa-sample-evtx -w

Some results get outputted after the progress bar and Scanning finished. Please wait while the results are being saved. message.

Also, this should only output Scanning finished. since it is not saving data to a file. (When -o is used, then we should display Scanning finished. Please wait while the results are being saved.)

I added the Please wait while the results are being saved. message because sometimes it would take a long time to save the file when we were sorting the results. (Now this is probably only an issue when -s, --sort-events is used)

[fukusuket]

I see... 🤔 I'll try to address this after the 2.18.0 release!