Blocks: update support from __experimentalLayout to layout #47550

Job	Run time
detect changed files	10s
Copied files are in sync	7s
Changelogger use	21s
Changelogger validity	1m 0s
Project structure	1m 35s
PHP lint (5.6)	32s
ESLint (non-excluded files only)	2m 17s
PHP lint (7.0)	24s
PHP Compatibility	1m 6s
PHP lint (7.2)	26s
PHP Code Sniffer (non-excluded files only)	1m 41s
PHP lint (7.4)	25s
PHP lint (8.0)	32s
PHP Code Sniffer (changes to excluded files only)	0s
Check linter exclude lists	0s
ESLint (changes to excluded files only)	0s
PHP lint (8.1)	26s
PHP lint (8.2)	30s
Lint GitHub Actions yaml files	0s
Lock files are up to date	0s
Monorepo package version refs	0s
	11m 32s

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