Pending Removal in Python 3.16

• array: array.array 'u' type (wchar_t): use the 'w' type instead (Py_UCS4).

• builtins: ~bool, bitwise inversion on bool.

• symtable: Deprecate symtable.Class.get_methods() due to the lack of interest. (Contributed by Bénédikt Tran in gh-119698.)