Handle illegal character in benchmark configs filename

[huydhn]

As reported by https://github.com/pytorch/executorch/actions/runs/12540463242/job/34967784456 that after #7433 (comment) landed, exporting some spec files are failing because of invalid filename, for example meta-llama/Llama-3.2-1B. The fix here is just to remove the illegal characters from the filename. Tthe upload script will use the JSON content, not the filename anyway.

Testing

Testing meta-llama/Llama-3.2-1B model on:

• Android https://github.com/pytorch/executorch/actions/runs/12553877667
• iOS https://github.com/pytorch/executorch/actions/runs/12553882773

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/7461

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⏳ No Failures, 4 Pending

As of commit 2f18c0b with merge base fc04436 ():
💚 Looks good so far! There are no failures yet. 💚

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@huydhn has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[guangy10]

Thanks for the fix!

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@huydhn has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[huydhn]

Let me wait a bit for the benchmark to finish to confirm the results on the dashboard. So far, exporting the spec is ok now.

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[huydhn]

The dashboard looks correct now https://hud.pytorch.org/benchmark/llms?startTime=Tue%2C%2024%20Dec%202024%2002%3A05%3A59%20GMT&stopTime=Tue%2C%2031%20Dec%202024%2002%3A05%3A59%20GMT&granularity=day&lBranch=fix-wrong-benchmark-config-filename&lCommit=2f18c0bb25c5e3cad73b8a2de5af5180937daf04&rBranch=fix-wrong-benchmark-config-filename&rCommit=2f18c0bb25c5e3cad73b8a2de5af5180937daf04&repoName=pytorch%2Fexecutorch&modelName=All%20Models&backendName=All%20Backends&dtypeName=All%20DType&deviceName=All%20Devices

On the other hand, I think there is another small bug on Android spec file https://github.com/pytorch/executorch/actions/runs/12553877667/job/35002446700. This is unrelated to this issue though, so I'm going to push another fix for that.