BUG/MINOR: quic: fix malformed probing packet building #3071

Job	Run time
Generate Build Matrix	5s
ubuntu-24.04, gcc, no features	1m 27s
ubuntu-24.04, gcc, all features	2m 4s
ubuntu-24.04, gcc, ASAN, all features	2m 48s
ubuntu-24.04, gcc, gz=zlib=1	1m 27s
ubuntu-24.04, gcc, ssl=stock	1m 50s
ubuntu-24.04, gcc, ssl=openssl=1.0.2u	1m 49s
ubuntu-24.04, gcc, ssl=openssl=1.1.1s	1m 54s
ubuntu-24.04, gcc, ssl=quictls=yes	4m 15s
ubuntu-24.04, gcc, ssl=wolfssl=5.7.0	2m 8s
ubuntu-24.04, gcc, ssl=aws_lc=1.29.0	1m 57s
ubuntu-24.04, gcc, ssl=openssl=3.4.0	1m 50s
ubuntu-24.04, gcc, ssl=libressl=4.0.0	2m 0s
ubuntu-24.04, clang, no features	1m 22s
ubuntu-24.04, clang, all features	1m 56s
ubuntu-24.04, clang, ASAN, all features	2m 31s
ubuntu-24.04, clang, gz=zlib=1	1m 22s
ubuntu-24.04, clang, ssl=stock	2m 43s
ubuntu-24.04, clang, ssl=openssl=1.0.2u	1m 40s
ubuntu-24.04, clang, ssl=openssl=1.1.1s	1m 47s
ubuntu-24.04, clang, ssl=quictls=yes	3m 47s
ubuntu-24.04, clang, ssl=wolfssl=5.7.0	1m 52s
ubuntu-24.04, clang, ssl=aws_lc=1.29.0	1m 56s
ubuntu-24.04, clang, ssl=openssl=3.4.0	1m 52s
ubuntu-24.04, clang, ssl=libressl=4.0.0	1m 48s
macos-15, clang, no features	1m 41s
	51m 51s

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