fuzz_http3serverreq: Fuzz client #935

Job	Run time
build-cross (x86_64-w64-mingw32)	59s
build-windows (x86)	1m 32s
build-cross (i686-w64-mingw32)	2m 49s
build (ubuntu-24.04, gcc, autotools)	54s
build-windows (x64)	1m 23s
build (ubuntu-24.04, gcc, cmake)	47s
build (ubuntu-24.04, clang, autotools)	59s
build (ubuntu-24.04, clang, distcheck)	1m 2s
build (ubuntu-24.04, clang, cmake)	1m 7s
build (macos-13, gcc, autotools)	1m 44s
build (macos-13, gcc, cmake)	1m 33s
build (macos-13, clang, autotools)	1m 11s
build (macos-13, clang, cmake)	1m 20s
build (macos-14, gcc, autotools)	1m 0s
build (macos-14, gcc, cmake)	1m 13s
build (macos-14, clang, autotools)	44s
build (macos-14, clang, cmake)	40s
release	0s
	20m 57s

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