workflow/fetch problems + fixes

[foosint]

At the moment the automatic workflow does not work and aborts with a permission error.

To fix this, the workflow would need other permissions:

# permissions
permissions:
  contents: write
  packages: write

Since scheduled workflow runs are not guaranteed to run at the exact set time and may even abort completely, I would suggest slightly modifying the fetch part.

Set the workflow cron to hourly, but make the following changes in the fetch script itself:

1. filename only with date without time.
2. wget downloads only if the file does not already exist. (-nc or -N option - which is better?)

This guarantees that the download for a day only takes place 1x and by the hourly workflow schedule is pretty much guaranteed that fetch should run at least once a day.

[fdov21]

I updated the permissions now. Your solutions sound nice though.