QUIC Polling Design: Fix nits #359

Job	Run time
address_ub_sanitizer	12m 3s
basic_clang	7m 11s
basic_gcc	6m 36s
check_docs	59s
check_update	1m 18s
check-ansi	2m 35s
enable_non-default_options	6m 1s
external-test-cf-quiche	3m 59s
external-test-pyca (1.51.0, 3.9)	6m 45s
external-tests	11m 27s
full_featured	7m 1s
fuzz_tests	3m 1s
legacy	4m 50s
memory_sanitizer	19m 55s
minimal	2m 41s
no-deprecated	5m 41s
no-legacy	6m 20s
non-caching	16m 9s
no-shared-macos (macos-13)	6m 11s
no-shared-ubuntu	5m 24s
no-shared-macos (macos-14)	4m 23s
out-of-readonly-source-and-install-macos (macos-13)	11m 8s
out-of-readonly-source-and-install-ubuntu	7m 57s
out-of-readonly-source-and-install-macos (macos-14)	7m 11s
self-hosted	0s
threads_sanitizer	7m 4s
	2h 53m 50s

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