Update eslint-config-uphold to 6.9.0

[pxlvre]

Description

Update eslint-config-uphold to 6.9.0

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• [N/A] I have commented my code, particularly in hard-to-understand areas
• [N/A] I have made corresponding changes to the documentation
• My changes generate no new warnings
• [N/A] Any dependent changes have been merged and published in downstream modules

[risantos]

Migrating eslint-config-uphold from v5.x to v6.x requires upgrading ESLint to v9.x.

It has the following peer dependencies:

https://github.com/uphold/eslint-config-uphold/blob/v6.9.0/package.json#L58-L62

[Copilot]

Pull request overview

This PR updates eslint-config-uphold from version 5.0.1 to 6.9.0, along with its peer dependencies.

Changes:

• Updated eslint-config-uphold from ^5.0.1 to ^6.9.0
• Updated eslint from ~8.57.0 to ~9.39.1 (major version upgrade)
• Updated prettier from ^2.4.1 to >=3.0.0 (major version upgrade)

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