dev.enginehost.renpy.8_4.v1 (testing)

Signed Enginehost bundle dev.enginehost.renpy.8_4.v1 on the testing channel, built from plugin/8.4 at 5a81d3b582b80da74ccc3b70535c58cc02489810 (build 261). Install it through Enginehost rather than unpacking it by hand: the bundle is verified file by file at install time against the key pinned for this repository.