chore: Use shared validate-pr composite action #12611

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	3s
diff_check / diff_check	9s
detect-changes / Detect file changes	7s
Build legacy macos dev no-frameworks	5m 41s
Build legacy ios dev no-frameworks	8m 40s
Build new ios dev no-frameworks	10m 15s
Build new ios production no-frameworks	10m 58s
Build legacy macos production no-frameworks	6m 6s
Build legacy android production no-frameworks	9m 44s
Build new android production no-frameworks	12m 11s
Build legacy ios production dynamic-frameworks	9m 24s
Build legacy ios production no-frameworks	9m 6s
Build new android dev no-frameworks	10m 18s
Build legacy android dev no-frameworks	9m 9s
Build legacy ios dev dynamic-frameworks	9m 59s
Test ios production REV2	4m 43s
Test android production REV2	5m 54s
	2h 2m 27s

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