Fix torchdata install command: use index-url for pip install

[atalman]

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[pytorch-bot]

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✅ You can merge normally! (13 Unrelated Failures)

As of commit 057f0e6 with merge base c0d0685 ():

FLAKY - The following jobs failed but were likely due to flakiness present on trunk:

• Bandit / build (gh)
• Build documentation / build / Build doc (gh)
• Build M1 Wheels / pytorch/text / wheel-py3_8-cpu (gh)
• Integration Test / tests (3.8) / linux-job (gh)
• Unit-tests on Linux CPU / tests (3.10) / linux-job (gh)
• Unit-tests on Linux CPU / tests (3.8) / linux-job (gh)
• Unit-tests on Linux CPU / tests (3.9) / linux-job (gh)
• Unit-tests on Linux GPU / tests (3.8, 11.7) / linux-job (gh)
• Unit-tests on Macos CPU / tests (3.10) / macos-job (gh)
• Unit-tests on Macos CPU / tests (3.8) / macos-job (gh)
• Unit-tests on Macos CPU / tests (3.9) / macos-job (gh)
• Unit-tests on Windows CPU / tests (3.8) / windows-job (gh)
• Unit-tests on Windows CPU / tests (3.9) / windows-job (gh)

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