Ciphers supports padding parameter; Upgrade tongsuo from 8.3.1 to 8.4.0 #78

Job	Run time
macos (macos-13, x86_64, 3.7, tests-nocoverage)	3m 48s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 0)	9m 16s
linux (3.12, flake)	21s
macos (macos-13, x86_64, 3.12, tests)	2m 54s
linux (pypy-3.9, tests-nocoverage, 8.4.0)	1m 56s
macos (macos-14, arm64, 3.12, tests)	1m 23s
linux (pypy-3.10, tests-nocoverage, 8.4.0)	1m 58s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 1)	9m 58s
linux (3.12, tests-randomorder, 8.4.0)	1m 51s
windows (x86, win32, VC-WIN32, 3.7, tests-nocoverage, 8.4.0, 2)	10m 31s
linux (3.12, tests, 8.4.0)	1m 55s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 0)	10m 29s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 1)	10m 28s
windows (x86, win32, VC-WIN32, 3.12, tests, 8.4.0, 2)	10m 33s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 0)	8m 39s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 1)	8m 37s
windows (x64, win64, VC-WIN64A, 3.7, tests-nocoverage, 8.4.0, 2)	8m 39s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 0)	7m 43s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 1)	7m 33s
windows (x64, win64, VC-WIN64A, 3.12, tests, 8.4.0, 2)	8m 59s
all-green	13s
	2h 7m 44s

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