release 4.3.0 #960

Job	Run time
lint	38s
build	26s
cleanup_buckets	23s
test-windows-bundle (windows-2019)	11m 6s
test-windows-bundle (windows-latest)	10m 13s
test-linux-bundle	8m 59s
test-docker	32m 14s
test (ubuntu-latest, 3.8)	15m 31s
test (ubuntu-latest, 3.9)	5m 26s
test (ubuntu-latest, 3.10)	5m 25s
test (ubuntu-latest, 3.11)	5m 18s
test (ubuntu-latest, 3.12)	6m 18s
test (ubuntu-latest, 3.13)	17m 48s
test (ubuntu-latest, pypy3.9)	13m 1s
test (ubuntu-latest, pypy3.10)	29m 8s
test (macos-latest, 3.10)	2m 56s
test (macos-latest, 3.11)	3m 53s
test (macos-latest, 3.12)	2m 57s
test (macos-latest, 3.13)	12m 8s
test (macos-latest, pypy3.9)	10m 2s
test (windows-latest, 3.8)	15m 15s
test (windows-latest, 3.9)	6m 7s
test (windows-latest, 3.10)	6m 0s
test (windows-latest, 3.11)	6m 19s
test (windows-latest, 3.12)	6m 53s
test (windows-latest, 3.13)	19m 48s
test (windows-latest, pypy3.9)	20m 59s
test (macos-13, 3.8)	17m 52s
test (macos-13, 3.9)	7m 35s
doc	51s
	5h 1m 29s

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