fix(Popper): add support of prop zIndex #6318

Job	Run time
Detect what files changed	3s
Run linters	1m 53s
Call reusable workflow / Run unit tests	1m 45s
Upload docs dist artifact (styleguide)	2m 10s
Upload docs dist artifact (storybook)	1m 26s
Analyze bundle size	2m 3s
Check dependencies	0s
Call reusable workflow / get_playwright_docker_image	12s
Call reusable workflow / Run e2e tests for (shard 1/10)	2m 14s
Call reusable workflow / Run e2e tests for (shard 2/10)	3m 14s
Call reusable workflow / Run e2e tests for (shard 3/10)	2m 11s
Call reusable workflow / Run e2e tests for (shard 4/10)	2m 50s
Call reusable workflow / Run e2e tests for (shard 5/10)	3m 33s
Call reusable workflow / Run e2e tests for (shard 6/10)	2m 16s
Call reusable workflow / Run e2e tests for (shard 7/10)	3m 16s
Call reusable workflow / Run e2e tests for (shard 8/10)	2m 16s
Call reusable workflow / Run e2e tests for (shard 9/10)	2m 37s
Call reusable workflow / Run e2e tests for (shard 10/10)	3m 14s
Report unit test results	2s
Prepare and upload e2e's HTML report artifact	35s
Call reusable workflow / Upload PR workflow payload artifact	3s
Call reusable workflow / Download PR workflow payload artifact	0s
	37m 53s

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