Description of your changes

As discussed in the linked issue, when using the Parameters providers to retrieve values from Secrets Manager or DynamoDB and passing an options object with no transform setting, the return type of the value was mistakenly assigned to undefined rather than the default return type for that provider.

This PR fixes the issue by accounting for this case.

Related issues, RFCs

Issue number: #1670

Checklist

• My changes meet the tenets criteria
• I have performed a self-review of my own code
• I have commented my code where necessary, particularly in areas that should be flagged with a TODO, or hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my change is effective and works
• The PR title follows the conventional commit semantics

Breaking change checklist

Is it a breaking change?: NO

• I have documented the migration process
• I have added, implemented necessary warnings (if it can live side by side)

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