Reverse dependencies for ruby-sdl2

Latest version of the following gems require ruby-sdl2

Gem	Version	Date	Downloads
nuklear +5.74 Thousand Downloads	`0.1.3` March 12, 2022	March 12, 2022	5.74 Thousand
hemi +5.25 Thousand Downloads	`0.0.4` January 02, 2021	January 02, 2021	5.25 Thousand
sdl2_vulkan +2.51 Thousand Downloads	`0.1.0` November 18, 2018	November 18, 2018	2.51 Thousand
game0flife +2.2 Thousand Downloads	`0.0.1` December 21, 2020	December 21, 2020	2.2 Thousand
badline +300 Downloads	`0.1.0` June 11, 2026	June 11, 2026	300
psx +220 Downloads	`0.1.0` May 14, 2026	May 14, 2026	220