Update TF requirement from 2.20.0rc0 to 2.20.0 #446

Job	Run time
call-workflow / Python 3.10 on macos-14	14m 43s
call-workflow / Python 3.10 on ubuntu-22.04-arm	13m 50s
call-workflow / Python 3.12 on macos-14	8m 1s
call-workflow / Python 3.12 on ubuntu-22.04-arm	15m 42s
call-workflow / Python 3.11 on macos-14	12m 52s
call-workflow / Python 3.10 on ubuntu-22.04	16m 34s
call-workflow / Python 3.11 on ubuntu-22.04	19m 31s
call-workflow / Python 3.13 on ubuntu-22.04	14m 12s
call-workflow / Python 3.13 on macos-14	7m 37s
call-workflow / Python 3.12 on ubuntu-22.04	19m 53s
call-workflow / Python 3.13 on ubuntu-22.04-arm	11m 18s
call-workflow / Python 3.11 on ubuntu-22.04-arm	15m 49s
call-workflow / publish-wheel	-1s
	2h 50m 1s

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