Update PSR-6 unsupported adapters list in documentation #732

Job	Run time
ci / Generate job matrix	6s
ci / QA Checks (Documentation Linting [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integra...	28s
ci / QA Checks (MkDocs Linting [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	20s
ci / QA Checks (README Linting [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	26s
ci / QA Checks (Unit tests with psr/cache v2 [8.1, locked], ubuntu-latest, laminas/laminas-continuous-...	23s
ci / QA Checks (Unit tests with psr/cache v2 [8.2, locked], ubuntu-latest, laminas/laminas-continuous-...	31s
ci / QA Checks (Unit tests with psr/cache v2 [8.3, locked], ubuntu-latest, laminas/laminas-continuous-...	31s
ci / QA Checks (Unit tests with psr/cache v2 [8.4, locked], ubuntu-latest, laminas/laminas-continuous-...	23s
ci / QA Checks (Unit tests with psr/simple-cache v2 [8.1, locked], ubuntu-latest, laminas/laminas-cont...	22s
ci / QA Checks (Unit tests with psr/simple-cache v2 [8.2, locked], ubuntu-latest, laminas/laminas-cont...	23s
ci / QA Checks (Unit tests with psr/simple-cache v2 [8.3, locked], ubuntu-latest, laminas/laminas-cont...	22s
ci / QA Checks (Unit tests with psr/simple-cache v2 [8.4, locked], ubuntu-latest, laminas/laminas-cont...	30s
	4m 45s

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