refactor(objc): use if let Some in for-loop instead of ? (#1156) #3946

Job	Run time
Rust compile check	1m 1s
TypeScript type check	6m 25s
Verify dynamic imports	7s
Security audit	7m 42s
Native host build (windows-latest)	6m 2s
Lint	6m 3s
Native host build (ubuntu-latest)	3m 19s
Native host build (macos-latest)	2m 35s
Engine parity (macos-latest)	16m 1s
Test Node 22 (ubuntu-latest)	6m 44s
Test Node 22 (macos-latest)	8m 37s
Engine parity (windows-latest)	12m 42s
Test Node 22 (windows-latest)	17m 4s
Engine parity (ubuntu-latest)	6m 24s
Pre-publish benchmark gate	-1s
CI Testing Pipeline	2s
	1h 40m 47s

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