fix(http3): typos #1768

Job	Run time
Build & test (ubuntu-latest, 1.74.0, debug)	7m 46s
Build & test (ubuntu-latest, stable, debug)	8m 32s
Build & test (ubuntu-latest, nightly, debug)	7m 10s
Build & test (macos-14, 1.74.0, debug)	7m 22s
Build & test (macos-14, stable, debug)	6m 51s
Build & test (macos-14, nightly, debug)	6m 29s
Build & test (windows-latest, 1.74.0, debug)	15m 23s
Build & test (windows-latest, stable, debug)	15m 44s
Build & test (windows-latest, nightly, debug)	15m 14s
Build & test (ubuntu-latest, stable, release)	9m 9s
Benchmark / Benchmark	6m 23s
	1h 46m 3s

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