Fix two failing tests on Linux

In #318, I had to add @pytest.mark.skipif(sys.platform == "linux", reason="'JSON data' not found") to two tests.

• #318

It would be great if someone could modify test/python_magic_test.py to fix these tests and remove the TODO and the skipif lines.

    # TODO: Fix this failing test on Ubuntu
    @pytest.mark.skipif(sys.platform == "linux", reason="'JSON data' not found")
    def test_descriptions(self):
        ...

    # TODO: Fix this failing test on Ubuntu
    @pytest.mark.skipif(sys.platform == "linux", reason="'JSON data' not found")
    def test_descriptions_no_soft(self):
        ...

We will need libmagic1 >= v5.44 https://github.com/ahupp/python-magic/pull/327#issuecomment-2124402148

Comienza con test/python_magic_test.py y ejecuta test_descriptions y test_descriptions_no_soft en Linux con libmagic1 �= v5.44. Compara los fallos con el comportamiento esperado de 'JSON data' y, a continuación, elimina las líneas TODO y skipif una vez que ambas pruebas pasen sin omitirlas según la plataforma.