ci: add generic dir to deb deploy script

[DmitriyLewen]

Description

Add generic dir to deb deploy script.

Related PRs

• feat(deb): add common dist trivy-repo#37
• docs: use generic link from trivy-repo #6606

Test:

• https://github.com/DmitriyLewen/trivy/actions/runs/8965411083/job/24620153662
• https://github.com/DmitriyLewen/trivy-repo/tree/main/deb/dists/generic

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).