Please disregard that, I've noteiced the "If no test suite matches your release of Lua exactly, download the suite for the closest Lua release." phrase on the tests page right after sending the e-mail above. My bad.
I'm trying to find a test suite for Lua 5.3.5, but the latest one at https://www.lua.org/tests/ is for Lua 5.3.4, Can I assume that the 5.3.4 test suite will work equally well for 5.3.5?