incorrect stub for `compileall.compile_dir` in python 3.7+ stdlib

[SKalt]

compileall.compile_dir is missing an annotation for its argument invalidation_mode, which should be py_compile.PycInvalidationMode.

#!/usr/bin/env bash
mypy --version  # mypy 0.740
python --version # python 3.7.5

python/cpython#5200, the PR that introduced the new argument
link to cpython Lib/compileall.py for reference.

Reproduction

#!/usr/bin/env python3
import sys
assert int(sys.version.split(".")[1]) >= 7 "requres python >= 7"
from compileall import compile_dir
from py_compile import PycInvalidationMode

compile_dir('path/to/real/dir', invalidation_mode=PycInvalidationMode.CHECKED_HASH)
# error: Unexpected keyword argument "invalidation_mode" for "compile_dir"

reveal_type(compile_dir)
# def(
#     dir: Union[builtins.str, builtins.bytes, builtins._PathLike[Any]],
#     maxlevels: builtins.int = None,
#     # -- snip --
#     workers: builtins.int =,
#    # MISSING: invalidation_mode: py_compile.PycInvalidationMode
# ) -> builtins.int

help(compile_all)
# compile_dir(dir, maxlevels=10, ..., workers=1, invalidation_mode=None)
#     # --snip--
#     workers:   maximum number of parallel workers
#     invalidation_mode: how the up-to-dateness of the pyc will be checked