Fix docs build: pin warp intersphinx to /latest/

[hujc7]

Summary

https://nvidia.github.io/warp/objects.inv now returns 404 — the Warp docs published objects.inv only at versioned subpaths (/latest/, /stable/, etc.). With Sphinx's warnings treated as errors, the broken intersphinx fetch fails the docs build on every PR (#5536, #5538, #5540-#5542 all failing on Build Latest Docs).

Pinning to /latest/ matches what other intersphinx targets in this file already do (see the existing PyTorch /docs/2.11/ pin, also added to work around a /stable/ 404).

Test plan

• Verified https://nvidia.github.io/warp/latest/objects.inv returns 200
• CI Build Latest Docs job passes on this PR (was failing on develop)

[greptile-apps]

Greptile Summary

Fixes the docs build by pinning the Warp intersphinx mapping from the broken root URL (https://nvidia.github.io/warp/) to /latest/, which is where objects.inv now lives. A changelog fragment is also added.

• docs/conf.py: changes the warp entry in intersphinx_mapping to https://nvidia.github.io/warp/latest/ and adds a comment following the same pattern used for the torch pin.
• source/isaaclab/changelog.d/jichuanh-fix-warp-intersphinx.rst: new changelog fragment describing the fix.

Confidence Score: 4/5

Safe to merge — the one-line URL fix directly unblocks the failing docs build with no risk of regressions elsewhere.

The change is minimal and targeted. Pinning to /latest/ means the intersphinx inventory will silently follow whatever Warp publishes as latest, so if Warp makes a breaking rename in a future release, cross-reference links could break again without any change to this repo. Using /stable/ instead would be slightly more conservative, but /latest/ is the pattern already established by the omniverse entry in this file and the PR author has verified the URL returns 200.

No files require special attention; the only substantive change is the single URL string in docs/conf.py.

Important Files Changed

Filename	Overview
docs/conf.py	Pins warp intersphinx URL from the broken root path to /latest/, with an explanatory comment consistent with the existing torch pin pattern.
source/isaaclab/changelog.d/jichuanh-fix-warp-intersphinx.rst	New changelog fragment documenting the warp intersphinx fix; format and content are correct.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Sphinx docs build starts] --> B[intersphinx fetches warp objects.inv]
    B -- Before PR --> C["GET https://nvidia.github.io/warp/objects.inv"]
    C --> D["404 Not Found"]
    D --> E["warnings-as-errors → build FAILS"]
    B -- After PR --> F["GET https://nvidia.github.io/warp/latest/objects.inv"]
    F --> G["200 OK"]
    G --> H["Cross-reference links resolved → build PASSES"]

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[hujc7]

Folded into #5538 — both unblock develop CI in one PR.