Boost: Add tests for Image CDN #54965

Job	Run time
detect changed files	8s
Changelogger use	16s
Changelogger validity	53s
Copied files are in sync	10s
Project structure	1m 37s
PHP lint (7.0)	30s
PHP Code Sniffer (non-excluded files only)	1m 40s
PHP lint (7.2)	30s
ESLint (non-excluded files only)	2m 13s
PHP lint (7.4)	57s
PHP Compatibility	1m 8s
PHP lint (8.0)	41s
PHP lint (8.1)	33s
PHP Code Sniffer (changes to excluded files only)	0s
PHP lint (8.2)	36s
Check linter exclude lists	0s
PHP lint (8.3)	30s
Lint GitHub Actions yaml files	0s
ESLint (changes to excluded files only)	0s
Monorepo package version refs	0s
Lock files are up to date	0s
	12m 22s

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