RPM file size validation

What does this MR do and why?

Here we have 2 base services for RPM package creation:

• Filename parser to extract name version release and arch from filename and validate extension
• Package creation service

Edit:

The MR was refactored to only include file size validation. See !96940 (comment 1102707657) for details.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

How to set up and validate locally

This is a part of bigger service that will be implemented later. It can be verified in rails console but basically specs should describe everything the service should do

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #371802 (closed)