Update links to multi30k dataset since original servers are down

[Nayef211]

• Update links to multi30k dataset to user hosted one since original servers are down

See #1756 for tracking

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/text/2194

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 2 New Failures, 6 Unrelated Failures

As of commit 764b8e9:

NEW FAILURES - The following jobs have failed:

• build (gh)
• tests (3.10) / macos-job (gh)

BROKEN TRUNK - The following jobs failed but were present on the merge base 60bea66:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• tests (3.8) / linux-job (gh)
• tests (3.8) / macos-job (gh)
• tests (3.8) / windows-job (gh)
• tests (3.9) / linux-job (gh)
• tests (3.9) / macos-job (gh)
• tests (3.9) / windows-job (gh)

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[malfet]

Looks ok, but do you know why hashsum of test dataset have changed?

[Nayef211]

Looks ok, but do you know why hashsum of test dataset have changed?

See #2003 (comment). The user hosted dataset is slightly different from the one on the server.