[CHORE]: bump default regex quota to 256

[c-gamble]

Description of changes

Bumps the default regex to 256, which has already been done on the management plane.

Test plan

• Tests pass locally with pytest for python, yarn test for js, cargo test for rust

Documentation Changes

N/A

[propel-code-bot]

This PR updates the default quota for regex pattern length in the Rust quota module from 0 to 256, aligning it with the previously updated management plane setting. No other logic or files are changed.

This summary was automatically generated by @propel-code-bot

[github-actions]

Reviewer Checklist

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Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
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• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
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• Are error messages user-friendly?
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Quality

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