Add new strategy for file size check

What does this MR do and why?

Add a new strategy for checking file size that would allow existing files that are oversized to remain oversized. The strategy will actually be called in: !125956 (merged)

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 #393535 (closed)