ci: fix url to rpm packages

[afdesk]

Description

before we set --location-prefix for generate a path to rpm package.
it didn't allow to use yum proxy.

Related issues

• Close not able to use the nexus yum proxy repo to trivy  trivy-repo#23

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).

[github-actions]

This PR is stale because it has been labeled with inactivity.