GeezerVison

Remove the following functions from the C API, move them to the internal C
API: add a new pycore_modsupport.h internal header file:

* PyModule_CreateInitialized()
* _PyArg_NoKwnames()
* _Py_VaBuildStack()

No longer export these functions.

* main: (167 commits)
  pythongh-91053: make func watcher tests resilient to other func watchers (python#106286)
  pythongh-104050: Add more type hints to Argument Clinic DSLParser() (python#106354)
  pythongh-106359: Fix corner case bugs in Argument Clinic converter parser (python#106361)
  pythongh-104146: Remove unused attr 'parameter_indent' from clinic.DLParser (python#106358)
  pythongh-106320: Remove private _PyErr C API functions (python#106356)
  pythongh-104050: Annotate Argument Clinic DSLParser attributes (python#106357)
  pythongh-106320: Create pycore_modsupport.h header file (python#106355)
  pythongh-106320: Move _PyUnicodeWriter to the internal C API (python#106342)
  pythongh-61215: New mock to wait for multi-threaded events to happen (python#16094)
  Document PYTHONSAFEPATH along side -P (python#106122)
  Replace the esoteric term 'datum' when describing dict comprehensions (python#106119)
  pythongh-104050: Add more type hints to Argument Clinic DSLParser() (python#106343)
  pythongh-106320: _testcapi avoids private _PyUnicode_EqualToASCIIString() (python#106341)
  pythongh-106320: Add pycore_complexobject.h header file (python#106339)
  pythongh-106078: Move DecimalException to _decimal state (python#106301)
  pythongh-106320: Use _PyInterpreterState_GET() (python#106336)
  pythongh-106320: Remove private _PyInterpreterState functions (python#106335)
  pythongh-104922: Doc: add note about PY_SSIZE_T_CLEAN (python#106314)
  pythongh-106217: Truncate the issue body size of `new-bugs-announce-notifier` (python#106329)
  pythongh-104922: remove PY_SSIZE_T_CLEAN (python#106315)
  ...