fix class cast exception for returned values

[fwbrasil]

Fixes #533

Problem

Drivers that don't support reading arbitrary returning types from action executions don't use the extractor instance, producing a class cast exception if the id is a WrappedValue.

Solution

Create single-element rows and use the extractor instance.

Checklist

• Unit test all changes
• Update README.md if applicable
• Add [WIP] to the pull request title if it's work in progress
• Squash commits that aren't meaningful changes
• Run sbt scalariformFormat test:scalariformFormat to make sure that the source files are formatted

@getquill/maintainers

[gustavoamigo]

👍

[zifeo]

Thanks!