ddeb leftovers in the daily runs

[rafaeldtinoco]

The new golang update app seems to be leaving .ddeb leftovers:

https://github.com/aquasecurity/btfhub/actions/runs/4349701197/jobs/7599658679

This could be mitigated by not syncing the ddebs or checking why the leftovers were there in the first place.

[rafaeldtinoco]

This only seems to happen when btfhub binary exists with unfinished extraction jobs. It is okay but then rsync should ignore other files (than .tar.gz BTF ones).

[brycekahle]

I think we could update the .gitignore in btfhub-archive to ignore .ddeb files and others

[brycekahle]

I took at pass at this in aquasecurity/btfhub-archive#37