Upgrade to llhttp 9.2.1 #3126

Job	Run time
Generate llhttp sources	6s
Linter	1m 10s
Test (3.8, ubuntu, false)	5m 45s
Test (3.8, windows, false)	5m 48s
Test (3.8, Y, ubuntu, false)	5m 2s
Test (3.9, ubuntu, false)	5m 12s
Test (3.9, macos, false)	5m 38s
Test (3.9, windows, false)	4m 53s
Test (3.9, Y, ubuntu, false)	4m 57s
Test (3.10, ubuntu, false)	5m 27s
Test (3.10, macos, false)	5m 53s
Test (3.10, windows, false)	6m 16s
Test (3.10, Y, ubuntu, false)	5m 11s
Test (3.11, ubuntu, false)	5m 8s
Test (3.11, macos, false)	8m 45s
Test (3.11, windows, false)	5m 42s
Test (3.11, Y, ubuntu, false)	4m 41s
Test (3.12, ubuntu, false)	5m 29s
Test (3.12, macos, false)	8m 58s
Test (3.12, windows, false)	5m 29s
Test (3.12, Y, ubuntu, false)	5m 5s
Test (pypy-3.9, Y, ubuntu, false)	10m 34s
Test (ubuntu, 3.13, true, Y)	48s
check	4s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	2h 2m 1s

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