Fix Python parser when chunk separators align (#8720) #4593

Job	Run time
Generate llhttp sources	5s
Linter	51s
Test (3.8, ubuntu, false)	5m 45s
Test (3.8, windows, false)	6m 34s
Test (3.8, Y, ubuntu, false)	5m 24s
Test (3.9, ubuntu, false)	5m 37s
Test (3.9, macos, false)	4m 2s
Test (3.9, windows, false)	5m 37s
Test (3.9, Y, ubuntu, false)	4m 58s
Test (3.10, ubuntu, false)	6m 54s
Test (3.10, macos, false)	4m 45s
Test (3.10, windows, false)	6m 57s
Test (3.10, Y, ubuntu, false)	5m 26s
Test (3.11, ubuntu, false)	5m 28s
Test (3.11, macos, false)	4m 9s
Test (3.11, windows, false)	6m 38s
Test (3.11, Y, ubuntu, false)	4m 52s
Test (3.12, ubuntu, false)	6m 53s
Test (3.12, macos, false)	4m 47s
Test (3.12, windows, false)	5m 49s
Test (3.12, Y, ubuntu, false)	5m 49s
Test (pypy-3.9, Y, ubuntu, false)	11m 43s
Test (ubuntu, 3.13, true, Y)	2m 15s
check	4s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Tarball	0s
Deploy	0s
	2h 1m 22s

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