feat(ios): Add `attachAllThreads` option #12871

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	2s
diff_check / diff_check	9s
detect-changes / Detect file changes	5s
Build legacy macos dev	5m 12s
Build new ios dev no-frameworks	7m 11s
Build new android dev	13m 14s
Build new android production	13m 49s
Build new ios production no-frameworks	7m 18s
Build legacy macos production	5m 49s
Test ios production REV2	6m 11s
Test android production REV2	5m 42s
	1h 4m 42s

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