CDN issue when building linux wheels

[msaroufim]

Since Oct 7 our CI jobs on the main branch have been reliably red because everytime we download pytorch we run into this issue

This is a CDN issue that is out of control but escalated this interally

+ conda run -p /__w/_temp/conda_environment_11300887954 pip install torch --pre --index-url https://d3kup0pazkvub8.cloudfront.net/whl/nightly/cpu
ERROR conda.cli.main_run:execute(41): `conda run pip install torch --pre --index-url [https://d3kup0pazkvub8.cloudfront.net/whl/nightly/cpu`](https://d3kup0pazkvub8.cloudfront.net/whl/nightly/cpu%60) failed. (See above for error)
WARNING: The directory '/github/home/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
ERROR: Wheel 'torch' located at /tmp/pip-unpack-nzix8h63/torch-2.6.0.dev20241011_cpu-cp310-cp310-linux_x86_64.whl is invalid.

Looking in indexes: https://d3kup0pazkvub8.cloudfront.net/whl/nightly/cpu
Collecting torch
  Downloading https://d3kup0pazkvub8.cloudfront.net/whl/nightly/cpu/torch-2.6.0.dev20241011%2Bcpu-cp310-cp310-linux_x86_64.whl (175.0 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━          134.2/175.0 MB 62.5 MB/s eta 0:00:01

[atalman]

The PR that deployed Meta CDN is reverted: pytorch/test-infra#5762