Fix webBlob test (use LFS file as example instead of Xet file) (#1230)

CI currently fails with:

```
packages/hub test:browser: ⎯⎯⎯⎯⎯⎯⎯ Failed Tests 1 ⎯⎯⎯⎯⎯⎯⎯
packages/hub test:browser:  FAIL  src/utils/WebBlob.spec.ts > WebBlob > should lazy load a LFS file hosted on Hugging Face
packages/hub test:browser: Error: Test timed out in 5000ms.
packages/hub test:browser: If this is a long-running test, pass a timeout value as the last argument or configure it globally with "testTimeout".
packages/hub test:browser: ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/1]⎯
```

PR expectation: CI is green.

See
#1230 (comment)
and
#1230 (comment)
for explanation.

Author: Wauplin

packages/hub/src/utils/WebBlob.spec.ts

@@ -49,12 +49,12 @@ describe("WebBlob", () => {
 	});
 
 	it("should lazy load a LFS file hosted on Hugging Face", async () => {
-		const stableDiffusionUrl =
-			"https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/resolve/main/unet/diffusion_pytorch_model.fp16.safetensors";
-		const url = new URL(stableDiffusionUrl);
+		const zephyrUrl =
+			"https://huggingface.co/HuggingFaceH4/zephyr-7b-alpha/resolve/main/model-00001-of-00008.safetensors";
+		const url = new URL(zephyrUrl);
 		const webBlob = await WebBlob.create(url);
 
-		expect(webBlob.size).toBe(5_135_149_760);
+		expect(webBlob.size).toBe(1_889_587_040);
 		expect(webBlob).toBeInstanceOf(WebBlob);
 		expect(webBlob).toMatchObject({ url });
 		expect(await webBlob.slice(10, 22).text()).toBe("__metadata__");