[PR #9372/0416d28 backport][3.11] Only prepare proxy headers for a re… #6568

Job	Run time
Generate llhttp sources	7s
Linter	54s
Test (3.9, ubuntu, false)	8m 1s
Test (3.9, macos, false)	5m 8s
Test (3.9, windows, false)	7m 14s
Test (3.9, Y, ubuntu, false)	5m 28s
Test (3.10, ubuntu, false)	5m 37s
Test (3.10, macos, false)	5m 3s
Test (3.10, windows, false)	7m 0s
Test (3.10, Y, ubuntu, false)	5m 58s
Test (3.11, ubuntu, false)	5m 27s
Test (3.11, macos, false)	4m 56s
Test (3.11, windows, false)	7m 35s
Test (3.11, Y, ubuntu, false)	5m 41s
Test (3.12, ubuntu, false)	6m 6s
Test (3.12, macos, false)	4m 54s
Test (3.12, windows, false)	7m 28s
Test (3.12, Y, ubuntu, false)	5m 46s
Test (3.13, ubuntu, false)	6m 47s
Test (3.13, macos, false)	6m 33s
Test (3.13, windows, false)	7m 46s
Test (3.13, Y, ubuntu, false)	6m 1s
Test (pypy-3.9, Y, ubuntu, false)	11m 22s
Test (ubuntu, 3.14, true, Y)	2m 37s
check	1s
Pre-Deploy	0s
Tarball	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Deploy	0s
	2h 19m 30s

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