Add workaround for orjson not handling subclasses of str

[emontnemery]

Proposed change

Add workaround for orjson not handling subclasses of str

Fixes #105309
Reported on orjson as ijl/orjson#445

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
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• Breaking change (fix/feature causing existing functionality to break)
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Additional information

• This PR fixes or closes issue: fixes #
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