🧹 Refactor updates type in tamagotchi.ts to use Partial<UrwisPet>

[marcin2121]

🎯 What: Replaced the use of any with Partial<UrwisPet> for the updates object in app/actions/tamagotchi.ts.
💡 Why: To improve code maintainability, prevent potential runtime errors by enforcing static type checking, and resolve an ESLint @typescript-eslint/no-explicit-any warning.
✅ Verification: Verified by running npm run lint and the project test runner, along with npm run build to ensure no functionality is broken and no new errors are introduced.
✨ Result: Enhanced type safety and cleaner code without any changes to the existing logic.

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PR created automatically by Jules for task 2040633247931442992 started by @marcin2121

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