Expo Router integration improvement: Prefetch route performance measurement with automatically created spans #10836

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	3s
diff_check / diff_check	11s
Build legacy macos production no-frameworks	6m 17s
Build legacy ios production no-frameworks	6m 23s
Build new android dev no-frameworks	6m 13s
Build legacy ios dev no-frameworks	6m 17s
Build new ios production no-frameworks	6m 25s
Build legacy ios production dynamic-frameworks	6m 22s
Build new android production no-frameworks	6m 12s
Build legacy android dev no-frameworks	6m 13s
Build legacy android production no-frameworks	6m 10s
Build new ios dev no-frameworks	6m 15s
Build legacy ios dev dynamic-frameworks	6m 22s
Build legacy macos dev no-frameworks	6m 19s
Test ${{ matrix.platform }} ${{ matrix.build-type }} REV2	1s
	1h 15m 43s

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