No update found for antigravity

[google-labs-jules]

I checked the Google Cloud Storage bucket for updates to the antigravity package. The latest version available is 2.1.4-6481382726303744, which matches the version already present in packages/antigravity.nix. As instructed, since there is no update, the task is marked as completed and no pull request will be created.

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PR created automatically by Jules for task 3947689359250208524 started by @RMTT

[google-labs-jules]

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