lua-luv: update to 1.42.0.1

1.42.0-1

* Use uv_handle_size/uv_req_size instead of sizeof
* LuaJIT: add missing LJ_ENDIAN and LJ_NO_UNWIND checks for DASM
  [this fixes building on aarch64]

1.42.0-0

* Update to Libuv 1.42.0
    * New function: uv.try_write2
* Fix uninitialized memory reads when work_fn in uv.new_work returns no
  values
* Luv C API: Add function to run thread in protected mode
* Change luv_work_cb() to run in protected mode and throw an error in
  luv_thread_arg_set() if an argument of an impermissible type is passed

(nia)