Stop testing on rails 7.2

[jcoyne]

Rails 7.2 is EOL as of Aug 9, 2026 https://endoflife.date/rails

[seanaery]

Thanks for keeping on top of this. As part of this removal -- or as a followup PR -- can we add the -a propshaft to one of the remaining test scenarios? If I understand correctly, I think this 7.2 scenario is the only one in the matrix currently testing the PropshaftGenerator.

[jcoyne]

@seanaery propshaft is the default in Rails 8.

[seanaery]

@jcoyne Oh right -- thanks! Now I see that all the remaining Rails 8 scenarios that specify --js=esbuild are indeed doing generate blacklight:assets:propshaft and the rest are doing generate blacklight:assets:importmap.