Update to latest PHP 8.1 syntax #1147

Job	Run time
ci / Generate job matrix	56s
ci / QA Checks (PHPUnit [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
ci / QA Checks (PHPUnit [8.1, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
ci / QA Checks (PHPUnit [8.1, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
ci / QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	56s
ci / QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	57s
ci / QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	5m 41s
ci / QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 7s
ci / QA Checks (PHPUnit [8.4, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	5m 51s
ci / QA Checks (PHPUnit [8.4, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 13s
ci / QA Checks (PHPCodeSniffer [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	31s
ci / QA Checks (Psalm [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1, ...	35s
ci / QA Checks (Composer Require Checker [8.1, locked], ubuntu-latest, laminas/laminas-continuous-inte...	5m 7s
ci / QA Checks (Backward Compatibility Check [@default, locked], ubuntu-latest, laminas/laminas-contin...	5m 20s
	30m 59s

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