*args and **kwargs are not captured in traces

[NotWearingPants]

The types of *args and **kwargs arguments are not added to traces:

__main__.py:

import foo
foo.func(1, 2, a=3, b=4)

foo.py:

def func(*args, **kwargs):
    return sum(args) + sum(kwargs.values())

$ rm ./monkeytype.sqlite3; pipenv run monkeytype run . && sqlite3 ./monkeytype.sqlite3 .dump
[...]
INSERT INTO monkeytype_call_traces VALUES('2023-09-15 10:21:16.983236','foo','func','{}','{"module": "builtins", "qualname": "int"}',NULL);
COMMIT;

See #304 (comment).

[carljm]

I think this wouldn't be too difficult to implement. I don't expect to have time to do the implementation, but will review a pull request for the feature.