[C API] Py_MOD_PER_INTERPRETER_GIL_SUPPORTED added to limited C API without versionning

Three constants for PyModuleDef_Slot were added to the limited C API in Python 3.13:

• Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED
• Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED
• Py_MOD_PER_INTERPRETER_GIL_SUPPORTED

Problem: there are added without version, as if they are available on Python 3.12 and older, whereas it's not the case.

cc @encukou @ericsnowcurrently

Linked PRs

• gh-110968: Py_MOD_PER_INTERPRETER_GIL_SUPPORTED new in 3.13. #110969
• gh-110968: Py_MOD_PER_INTERPRETER_GIL_SUPPORTED was added to 3.12 #111584
• [3.12] gh-110968: Py_MOD_PER_INTERPRETER_GIL_SUPPORTED was added to 3.12 #111588