add rms_norm #4732

Job	Run time
pytester (ubuntu-22.04, 3.10, latest, core)	11m 2s
pytester (ubuntu-22.04, 3.10, latest, ops)	23m 50s
pytester (ubuntu-22.04, 3.10, nightly, core)	12m 4s
pytester (ubuntu-22.04, 3.10, nightly, ops)	24m 2s
pytester (macOS-14, 3.10, latest, core)	7m 21s
pytester (macOS-14, 3.10, latest, ops)	18m 29s
pytester (macOS-14, 3.10, nightly, core)	6m 49s
pytester (macOS-14, 3.10, nightly, ops)	18m 31s
pytester (windows-2022, 3.10, latest, core)	24m 45s
pytester (windows-2022, 3.10, nightly, core)	24m 29s
pytester (ubuntu-22.04, 3.11, latest)	24m 26s
pytester (ubuntu-22.04, 3.12, latest)	28m 15s
testing-guardian	1s
	3h 44m 4s

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