filescan logs are not tagged with same tags as "source" logs for uploaded PCAP

[mmguero]

FOR UPLOADED FILES, filescan logs are not tagged with same tags as "source" logs

Steps to reproduce:

1. upload foobar.pcap containing some file transfers
2. filter for tag:foobar (you'll see zeek logs, but not filescan logs)
3. remove filter (you'll now see the filescan logs)

For "live" files (captured on Hedgehog, etc.) this should be working correctly. It's only for uploaded ones it's an issue.

[mmguero]

This is a bit trickier than I thought, since at the time filescan receives the request (from zeek) and generates the response, the tags are not associated with the record yet. I'll have to look at it next time around.