Add check-update commands for plugins and themes #534

Job	Run time
code-quality / Lint GitHub Actions workflows	9s
code-quality / Spell check	8s
code-quality / PHPCS	20s
code-quality / PHPStan	39s
code-quality / Lint Gherkin Feature files	15s
code-quality / Lint PHP files	21s
	1m 52s

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