Upgraded test code, added Psalm PHPUnit plugin to better understand P… #1479

Job	Run time
Generate job matrix	9s
QA Checks (README Linting [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	34s
QA Checks (PHPUnit [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	22s
QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	23s
QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	22s
QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	34s
QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	32s
QA Checks (PHPUnit [8.4, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	22s
QA Checks (PHPUnit [8.4, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	35s
QA Checks (Infection [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@...	24s
QA Checks (PHPCodeSniffer [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	20s
QA Checks (Psalm [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1, ...	26s
	5m 3s

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