actions: Use node20 runner #50806

Job	Run time
detect changed files	8s
Copied files are in sync	6s
Changelogger use	14s
Changelogger validity	54s
Project structure	1m 35s
PHP lint (7.0)	27s
PHP Compatibility	1m 5s
PHP lint (7.2)	24s
PHP Code Sniffer (non-excluded files only)	1m 37s
PHP lint (7.4)	26s
PHP lint (8.0)	36s
ESLint (non-excluded files only)	2m 7s
PHP lint (8.1)	36s
PHP Code Sniffer (changes to excluded files only)	0s
Check linter exclude lists	1m 51s
PHP lint (8.2)	35s
PHP lint (8.3)	28s
ESLint (changes to excluded files only)	0s
Lint GitHub Actions yaml files	32s
Lock files are up to date	1m 56s
Monorepo package version refs	1m 4s
	16m 41s

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