Typo in comment inside _transformer.py

**File:** `gemma/gm/nn/gemma3n/_transformer.py`

There’s a small typo in the comment above the `INFO` field:

- **Incorrect:** `specifiy`
- **Correct:** `specify`

---

Since this is only a comment typo, I’d be happy to create a quick PR to fix it.
Could you please assign this to me?

**Screenshot:**

Thanks.