Merge branch 'release/8.19.0' #16457

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	2s
detect-changes / Detect file changes	5s
diff_check / diff_check	5s
android	3m 37s
ios on cirrus	8m 14s
ios on bitrise	8m 25s
	20m 28s

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