[3.14] gh-141909: Add `PyModuleDef_Slot` and earlier Py_mod_* constants to stable ABI manifest (#141910) (GH-141978)

These were added to the limited API in 3.5-3.13.
Not including them in `Misc/stable_abi.toml` was a bug.

(cherry picked from commit 202fce0dbde1da32d8abc2eb59ddfce6f6a3c9fa)