Allow Cython 3 (#1101) #569

Job	Run time
test-postgres (9.5)	4m 18s
test-platforms (3.8, ubuntu-latest, asyncio)	3m 24s
test-postgres (9.6)	4m 11s
test-platforms (3.8, ubuntu-latest, uvloop)	3m 31s
test-postgres (10)	4m 7s
test-platforms (3.8, macos-latest, asyncio)	4m 2s
test-postgres (11)	3m 48s
test-platforms (3.8, macos-latest, uvloop)	3m 39s
test-platforms (3.8, windows-latest, asyncio)	4m 46s
test-platforms (3.9, ubuntu-latest, asyncio)	3m 36s
test-postgres (12)	3m 57s
test-platforms (3.9, ubuntu-latest, uvloop)	3m 43s
test-postgres (13)	3m 54s
test-platforms (3.9, macos-latest, asyncio)	3m 15s
test-postgres (14)	3m 41s
test-platforms (3.9, macos-latest, uvloop)	3m 20s
test-postgres (15)	4m 0s
test-platforms (3.9, windows-latest, asyncio)	4m 16s
test-postgres (16)	4m 8s
test-platforms (3.10, ubuntu-latest, asyncio)	3m 32s
test-platforms (3.10, ubuntu-latest, uvloop)	3m 27s
test-platforms (3.10, macos-latest, asyncio)	3m 13s
test-platforms (3.10, macos-latest, uvloop)	3m 23s
test-platforms (3.10, windows-latest, asyncio)	5m 19s
test-platforms (3.11, ubuntu-latest, asyncio)	3m 12s
test-platforms (3.11, ubuntu-latest, uvloop)	3m 22s
test-platforms (3.11, macos-latest, asyncio)	3m 16s
test-platforms (3.11, macos-latest, uvloop)	3m 10s
test-platforms (3.11, windows-latest, asyncio)	4m 43s
test-platforms (3.12, ubuntu-latest, asyncio)	3m 39s
test-platforms (3.12, macos-latest, asyncio)	3m 12s
test-platforms (3.12, windows-latest, asyncio)	5m 25s
Regression Tests	0s
	2h 2m 29s

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