Update TF requirement from 2.20.0rc0 to 2.20.0 #444

Job	Run time
call-workflow / Python 3.11 on macos-14	10m 2s
call-workflow / Python 3.10 on ubuntu-22.04	16m 41s
call-workflow / Python 3.11 on ubuntu-22.04-arm	16m 46s
call-workflow / Python 3.10 on ubuntu-22.04-arm	13m 41s
call-workflow / Python 3.10 on macos-14	7m 52s
call-workflow / Python 3.12 on ubuntu-22.04-arm	15m 57s
call-workflow / Python 3.11 on ubuntu-22.04	19m 28s
call-workflow / Python 3.13 on ubuntu-22.04-arm	11m 28s
call-workflow / Python 3.13 on ubuntu-22.04	14m 9s
call-workflow / Python 3.13 on macos-14	8m 15s
call-workflow / Python 3.12 on macos-14	11m 17s
call-workflow / Python 3.12 on ubuntu-22.04	20m 36s
call-workflow / publish-wheel	0s
	2h 46m 12s

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