fixed wrong language id in Metal Alloy item entry

[joos-too]

Change description

• fixed wrong language id in Metal Alloy item entry

AI coding assistance disclosure

No AI used.

Contributor check list

• I have written a description of the contribution and explained its motivation.
• I have written tests for my code changes (if applicable).
• I have read and understood the AI Assisted Contribution guidelines.
• I will own this change in production, and I am prepared to fix any bugs caused by my code change.

[pokeapi-machine-user]

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