Bump quinn-proto from 0.11.3 to 0.11.8 #2575

Job	Run time
Build static Linux binary	1m 58s
Release build for Windows	5m 6s
Release build for macOS	2m 35s
Build ARM binary (arm64, aarch64-unknown-linux-musl, arm64v8/ubuntu, aarch64)	2m 57s
clippy	44s
Build ARM binary (arm32, armv7-unknown-linux-gnueabihf, arm32v7/ubuntu, armv7)	2m 31s
fmt	13s
unit_tests (ubuntu-latest)	1m 6s
unit_tests (macOS-latest)	1m 39s
unit_tests (windows-latest)	3m 9s
e2e/linux	1m 45s
Ensure command docs are up-to-date	34s
e2e/macos	3m 2s
e2e/windows	9m 40s
	36m 59s

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