luajit: bump new version

* FFI: Fix recording of union initialization.
* Fix maxslots when recording BC_VARG, part 2.
* Fix maxslots when recording BC_VARG.
* Fix BC_UCLO insertion for returns.
* ci: update job concurrency group definition

Part of #8825

NO_DOC=LuaJIT submodule bump
NO_TEST=LuaJIT submodule bump