chore(ios): Bump Testflight Xcode version to 26 #10491

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	4s
diff_check / diff_check	10s
Build legacy android dev no-frameworks	13m 3s
Build legacy macos dev no-frameworks	16m 16s
Build legacy android production no-frameworks	15m 9s
Build new ios dev no-frameworks	36m 35s
Build legacy ios dev dynamic-frameworks	35m 17s
Build legacy ios dev no-frameworks	31m 30s
Build new ios production no-frameworks	25m 53s
Build legacy macos production no-frameworks	22m 27s
Build legacy ios production dynamic-frameworks	26m 36s
Build new android production no-frameworks	15m 2s
Build new android dev no-frameworks	13m 51s
Build legacy ios production no-frameworks	26m 45s
Test ios production REV2	15m 54s
Test android production REV2	5m 36s
	5h 0m 8s

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