fix: Fix typing of log_request

[joeyparrish]

This mistake slipped through because we are not yet validating every PR with mypy.

[mariocynicys]

This mistake slipped through because we are not yet validating every PR with mypy.

But I see we do lint check the code in the end-to-end tests:

shaka-streamer/run_end_to_end_tests.py

Lines 310 to 314 in aa1f4e7

	type_check_result = mypy_api.run(['streamer/'])
	if type_check_result[2] != 0:
	print('The type checker found the following errors: ')
	print(type_check_result[0])
	return 1

[joeyparrish]

This mistake slipped through because we are not yet validating every PR with mypy.

But I see we do lint check the code in the end-to-end tests:

Yes, and soon I intend to revive the workflows that run those tests. I am also going to build release workflows, like those we have for most of the other shaka-project repos.