test

[bhimrazy]

What does this PR do?

Fixes #<issue_number>

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• Was this discussed/agreed via a Github issue? (no need for typos and docs improvements)
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• Did you make sure to update the docs?
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[bhimrazy]

temp pr to test : Lightning-AI#3306

[Copilot]

Pull request overview

This PR makes infrastructure improvements to the documentation build workflow and Sphinx configuration. The changes focus on resolving documentation build issues and cleaning up unused workflow parameters. While the PR title "test" and incomplete description suggest this may be a work-in-progress, the actual code changes are focused and reasonable.

Key changes:

• Added Sphinx nitpick_ignore configuration to suppress warnings for unresolvable typing references
• Configured linkcheck to ignore a Medium article URL that returns 403 errors to automated clients
• Removed unused PYPI_CACHE environment variable and related pypi-dir workflow parameters that were never defined in the action inputs
• Added disk space cleanup step to prevent out-of-disk issues during documentation builds

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
docs/source/conf.py	Added nitpick ignore rules for typing references and excluded Medium article from link checking
.github/workflows/docs-build.yml	Removed unused PYPI_CACHE references and added disk space cleanup step to prevent build failures

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