docs: Bump HPU ref 1.5.0

[pl-ghost]

This is automated update with the latest HPU
release!

Go to docs/source-pytorch/conf.py and find section assist_local.AssistantCLI.pull_docs_files(... for Habana and bump the reference to 1.5.0
Please, proceed with this update in timely manner...

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📚 Documentation preview 📚: https://pytorch-lightning--19843.org.readthedocs.build/en/19843/

[github-actions]

⛈️ Required checks status: Has failure 🔴

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Groups summary

🔴 pytorch_lightning: Docs

Check ID	Status
docs-make (pytorch, doctest)	failure	❌
docs-make (pytorch, html)	failure	❌

These checks are required after the changes to docs/source-pytorch/conf.py.

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