[PR #9368/02d8dba9 backport][3.10] Avoid using the proxy headers in the ConnectionKey if no proxy is in use #6569

Job	Run time
Linter	52s
Generate llhttp sources	6s
Test (3.8, ubuntu, false)	5m 30s
Test (3.8, windows, false)	6m 24s
Test (3.8, Y, ubuntu, false)	5m 8s
Test (3.9, ubuntu, false)	6m 25s
Test (3.9, macos, false)	5m 6s
Test (3.9, windows, false)	6m 34s
Test (3.9, Y, ubuntu, false)	5m 47s
Test (3.10, ubuntu, false)	7m 3s
Test (3.10, macos, false)	4m 25s
Test (3.10, windows, false)	6m 9s
Test (3.10, Y, ubuntu, false)	5m 59s
Test (3.11, ubuntu, false)	6m 3s
Test (3.11, macos, false)	4m 21s
Test (3.11, windows, false)	6m 35s
Test (3.11, Y, ubuntu, false)	5m 44s
Test (3.12, ubuntu, false)	6m 41s
Test (3.12, macos, false)	6m 22s
Test (3.12, windows, false)	8m 21s
Test (3.12, Y, ubuntu, false)	6m 28s
Test (3.13, ubuntu, false)	6m 3s
Test (3.13, macos, false)	5m 11s
Test (3.13, windows, false)	8m 32s
Test (3.13, Y, ubuntu, false)	5m 39s
Test (pypy-3.9, Y, ubuntu, false)	9m 40s
Test (ubuntu, 3.14, true, Y)	2m 49s
check	2s
Pre-Deploy	1s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	1s
Tarball	1s
Deploy	1s
	2h 34m 3s

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