In python 3.13, it become possible to build it in `no-gil` [mode](https://docs.python.org/3.13/whatsnew/3.13.html#free-threaded-cpython). We need to find a way to run our tests on no-gil python binary. Any C library that does not support NOGIL protocol will turn GIL on. To make tests are running on `no-gil` mode we need to enfore it via `PYTHON_GIL=0`