Update TF requirement from 2.20.0rc0 to 2.20.0 #445

Job	Run time
call-workflow / Python 3.11 on ubuntu-22.04-arm	14m 44s
call-workflow / Python 3.10 on ubuntu-22.04	17m 19s
call-workflow / Python 3.10 on ubuntu-22.04-arm	13m 31s
call-workflow / Python 3.13 on ubuntu-22.04	14m 59s
call-workflow / Python 3.11 on ubuntu-22.04	19m 52s
call-workflow / Python 3.12 on macos-14	9m 47s
call-workflow / Python 3.12 on ubuntu-22.04	20m 0s
call-workflow / Python 3.10 on macos-14	8m 33s
call-workflow / Python 3.11 on macos-14	7m 41s
call-workflow / Python 3.13 on ubuntu-22.04-arm	11m 11s
call-workflow / Python 3.12 on ubuntu-22.04-arm	15m 26s
call-workflow / Python 3.13 on macos-14	9m 35s
call-workflow / publish-wheel	-1s
	2h 42m 37s

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