Ciphers supports padding parameter; Upgrade tongsuo from 8.3.1 to 8.4.0 #81

Job	Run time
macos (macos-13, x86_64, 3.7, tests-nocoverage)	3m 34s
linux (3.12, flake)	22s
macos (macos-13, x86_64, 3.12, tests)	3m 13s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 0)	9m 43s
linux (pypy-3.9, tests-nocoverage, 8.4.0)	2m 10s
macos (macos-14, arm64, 3.12, tests)	2m 0s
linux (pypy-3.10, tests-nocoverage, 8.4.0)	2m 10s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 1)	10m 19s
linux (3.12, tests-randomorder, 8.4.0)	1m 51s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 2)	10m 36s
linux (3.12, tests, 8.4.0)	1m 55s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 0)	10m 36s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 1)	10m 9s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 2)	10m 22s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 0)	8m 36s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 1)	8m 36s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 2)	8m 17s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 0)	8m 27s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 1)	8m 55s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 2)	9m 0s
all-green	13s
	2h 11m 4s

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