Reverse dependencies for attribute_struct

Latest version of the following gems require attribute_struct

Gem	Version	Date	Downloads
sparkle_formation +1.74 Million Downloads	`3.0.40` August 04, 2019	August 04, 2019	1.74 Million
bogo-config +1.1 Million Downloads	`0.3.1` December 21, 2022	December 21, 2022	1.1 Million
batali +136 Thousand Downloads	`0.5.0` June 17, 2018	June 17, 2018	136 Thousand
elecksee +89.6 Thousand Downloads	`2.0.4` September 25, 2015	September 25, 2015	89.6 Thousand
grimoire +43.4 Thousand Downloads	`0.2.16` March 16, 2016	March 16, 2016	43.4 Thousand
vagabond +35.3 Thousand Downloads	`0.2.10` November 12, 2013	November 12, 2013	35.3 Thousand