Remove pickle loading from CookieJar #15919

Job	Run time
Generate llhttp sources	12s
Linter	1m 4s
Pre-Setup global build settings	4s
Autobahn testsuite (3.14, ubuntu)	11m 36s
Benchmark	6m 11s
Test (3.11, Y, ubuntu, false)	5m 34s
Test (3.13, macos, false)	9m 32s
Test (3.10, windows, false)	5m 58s
Test (3.10, Y, ubuntu, false)	6m 23s
Test (3.11, windows, false)	6m 52s
Test (3.10, macos, false)	7m 16s
Test (3.10, ubuntu, false)	4m 49s
Test (3.13, ubuntu, false)	4m 40s
Test (3.12, ubuntu, false)	4m 36s
Test (3.14, macos, false)	7m 18s
Test (3.11, macos, false)	6m 29s
Test (3.11, ubuntu, false)	4m 9s
Test (3.12, windows, false)	5m 34s
Test (3.12, macos, false)	6m 40s
Test (pypy-3.11, Y, ubuntu, false)	9m 44s
Test (3.14, windows, false)	6m 7s
Test (3.14, Y, ubuntu, false)	6m 6s
Test (3.12, Y, ubuntu, false)	6m 15s
Test (3.13, Y, ubuntu, false)	5m 31s
Test (3.13, windows, false)	6m 33s
Test (ubuntu, 3.14t, false)	3m 44s
Test (3.14, ubuntu, false)	5m 12s
check	6s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }} ${{ matrix.musl }}	0s
Tarball	0s
Deploy	0s
	2h 34m 15s

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