Updates Tenacity to 9.0.0 #92

Job	Run time
Linting	38s
tests on 3.11	5m 36s
Typing	50s
Build & verify package	20s
Verify dev env (ubuntu-latest)	8s
Verify dev env (macos-latest)	11s
Verify dev env (windows-latest)	23s
Combine & check coverage	10s
	8m 16s

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