RPMs version is truncated in container image scan

Originally posted by @pombredanne in https://github.com/aboutcode-org/scancode.io/issues/1377

> I've submitted a fix for this issue in PR #2030. The fix combines the RPM version and release fields to show the complete version string.

This is a scancode-toolkit issue at the root: this change if needed should take place upstream and not in this repo at all, most likely in https://github.com/aboutcode-org/scancode-toolkit/tree/develop/src/packagedcode rpm or rpm_installed or both.