Update ffi to 1.9.25

What does this MR do?

Updates ffi gem to 1.9.25. (link: https://rubygems.org/gems/ffi/versions/1.9.25)

What are the relevant issue numbers?

#51180 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• [n/a] Documentation created/updated
• [n/a] Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• [n/a] Conforms to the database guides

Closes #51180 (closed)