feat: Implements `arr.shift` (#14298) #5

Job	Run time
check-features	9m 3s
check-wasm	4m 51s
integration-test (ubuntu-latest)	2m 7s
test (ubuntu-latest)	4m 23s
integration-test (windows-latest)	7m 27s
test (windows-latest)	9m 16s
	37m 7s

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