What does the PR do?

Support the L0_backend_python test for our RHEL8 asset.

Checklist

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• Changes are described in the pull request.
• Related issues are referenced.
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• build
• ci
• docs
• feat
• fix
• perf
• refactor
• revert
• style
• test

Related PRs:

triton-inference-server/python_backend#389
triton-inference-server/core#418

• CI Pipeline ID:

21140314