feat(ssa): Simplify array get from set that writes to the same dynamic index #16017

Job	Run time
build-nargo	2m 24s
build-acvm-js	1m 27s
build-noirc-abi	1m 40s
build-noir-wasm	3m 36s
ACVM JS (Node.js)	44s
ACVM JS (Browser)	1m 18s
noirc_abi	1m 42s
Noir JS	1m 4s
noir_codegen	1m 3s
Check external repo - ${{ matrix.project.repo }}	0s
Example scripts	12s
noir_wasm	1m 29s
Integration Tests (Browser)	1m 51s
Integration Tests (Node)	2m 26s
End	1s
	20m 57s

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