Reverse dependencies for iostruct

Latest version of the following gems require iostruct

Gem	Version	Date	Downloads
pedump +6.55 Million Downloads	`0.7.6` January 28, 2026	January 28, 2026	6.55 Million
zpng +658 Thousand Downloads	`0.4.6` January 28, 2026	January 28, 2026	658 Thousand
zsteg +638 Thousand Downloads	`0.2.14` January 28, 2026	January 28, 2026	638 Thousand
efivalidate +9.3 Thousand Downloads	`1.2.0` January 08, 2018	January 08, 2018	9.3 Thousand
xaba +3.3 Thousand Downloads	`0.1.1` June 11, 2024	June 11, 2024	3.3 Thousand