Update Psr16Adapter.php

[kxuuuuuuuuuuio]

Proposed changes

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If it fixes a bug or resolves a feature request, be sure to link to that issue.

Types of changes

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• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] Improvement (non-breaking change which improves an existing code/behavior)
• [ ] Deprecated third party dependency update
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation/Typo/Resource update that does not involve any code modification

Agreement

I have read the CONTRIBUTING and CODING GUIDELINE docs

Further comments

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