Prevents type errors when initializing a Metadata instance. #481

Job	Run time
Generate job matrix	10s
QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 53s
QA Checks (PHPUnit [8.4, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 56s
QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 51s
QA Checks (PHPUnit [8.4, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 42s
QA Checks (PHPUnit [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 55s
QA Checks (PHPStan [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 53s
QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	2m 5s
QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 57s
QA Checks (PhpStan [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 53s
QA Checks (PHPUnit [8.5, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 48s
QA Checks (PHPUnit [8.5, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 48s
QA Checks (PHPCodeSniffer [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	1m 49s
	22m 40s

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