* Add gh-aw agentic workflow for upgrading Python libraries
- upgrade-pylib.md: Claude-based workflow triggered via workflow_dispatch
- Runs `scripts/update_lib quick <name>` to sync a library from CPython
- Creates a PR with the result, referencing issue #6839
- TypeVar/ParamSpec repr: use infer_variance flag
- ParamSpec: add type_check on bound argument
- ParamSpecArgs/Kwargs: use equality instead of identity
- NoDefault: change to IMMUTABLETYPE flag
- subscript_generic: wrap TypeVarTuple in Unpack
- symboltable: selective name mangling in type param scopes
- symboltable: fix double default scanning for non-generic fns
- Unmark 4 passing tests in test_type_params
- Replace chrono with CRT functions (wcsftime, _gmtime64_s,
_localtime64_s, _mktime64) on Windows for correct behavior
- Fix timezone name corruption: use take_while instead of filter
for null-terminated wide strings in TIME_ZONE_INFORMATION
- Fix wcsftime symbol name (_wcsftime -> wcsftime)
- Fix CString import cfg to unix-only
- Remove 13 expectedFailure markers from test_time for Windows
- Add bytearray.resize() method
- BytesIO: support keyword arg for initial_bytes
- BytesIO.seek: clamp negative positions to 0
- BytesIO.close: raise BufferError on active exports
- BytesIO.getbuffer: check closed state
- Set UnsupportedOperation.__module__ to "io"
- Rewrite compile_dict to preserve insertion order with ** unpacking
- Fix function call error messages to include function name and
keyword-only argument counts
- Fix missing keyword-only argument error to list all missing args
- Fix starred expression error messages to match CPython
- Fix "cannot unpack non-iterable" error message
- Remove resolved expected failure markers in test_extcall and
test_unpack_ex
Lee Dogeon