Issue #56: Bump Psalm to 6.x #72

Job	Run time
ci / Generate job matrix	7s
ci / QA Checks (Documentation Linting [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integra...	25s
ci / QA Checks (MkDocs Linting [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-ac...	20s
ci / QA Checks (README Linting [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-ac...	21s
ci / QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	25s
ci / QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	22s
ci / QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	19s
ci / QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	25s
ci / QA Checks (PHPUnit [8.4, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	21s
ci / QA Checks (PHPUnit [8.4, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	21s
ci / QA Checks (PHPCodeSniffer [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-ac...	25s
ci / QA Checks (Psalm [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1, ...	24s
ci / QA Checks (Backward Compatibility Check [@default, latest], ubuntu-latest, laminas/laminas-contin...	30s
	4m 45s

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