Support ZMQ Curve for transport encryption #4091

Job	Run time
test_without_debugpy (ubuntu-latest, 3.10)	2m 14s
Make SDist	27s
check_release	1m 49s
Test Lint	1m 2s
Test Minimum Versions	2m 48s
Test Prereleases	2m 31s
link_check	2m 47s
test_docs	55s
build (ubuntu-latest, qt6, 3.12)	2m 50s
build (ubuntu-latest, qt5, 3.10)	2m 42s
build (ubuntu-latest, qt6, 3.10)	2m 48s
build (windows-latest, qt6, 3.10)	4m 25s
build (ubuntu-latest, qt5, 3.14)	2m 37s
build (windows-latest, qt5, 3.10)	4m 1s
build (ubuntu-latest, qt5, pypy-3.11)	3m 29s
build (ubuntu-latest, qt6, 3.13)	2m 50s
build (ubuntu-latest, qt6, 3.11)	2m 40s
build (ubuntu-latest, qt6, pypy-3.11)	3m 32s
build (macos-latest, qt5, pypy-3.11)	4m 53s
build (windows-latest, qt5, 3.14)	4m 13s
build (windows-latest, qt6, pypy-3.11)	6m 14s
build (windows-latest, qt6, 3.11)	5m 2s
build (windows-latest, qt5, pypy-3.11)	6m 1s
build (windows-latest, qt6, 3.13)	4m 4s
build (macos-latest, qt6, 3.12)	3m 33s
build (macos-latest, qt5, 3.10)	3m 35s
build (macos-latest, qt6, 3.10)	3m 9s
build (macos-latest, qt6, 3.11)	3m 16s
build (macos-latest, qt6, 3.13)	2m 55s
build (macos-latest, qt5, 3.14)	3m 15s
build (windows-latest, qt6, 3.12)	4m 4s
build (macos-latest, qt6, pypy-3.11)	4m 13s
Install from SDist and Test	2m 36s
coverage	14s
	1h 47m 44s

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