Exclude docs.omniverse.nvidia.com from link checker

[ooctipus]

Description

The Check for Broken Links job is failing on develop and every open PR: docs.omniverse.nvidia.com now returns 403 Forbidden to the lychee crawler (85 links rejected in the latest develop run, e.g. https://github.com/isaac-sim/IsaacLab/actions/runs/29400148439). Reruns do not clear it — the domain is blocking the checker's requests, not individual pages.

This adds the domain to the existing crawl-blocker exclude list, matching the sibling entries (docs.isaacsim.omniverse.nvidia.com, openusd.org, etc.).

Type of change

• Bug fix (CI)

Checklist

• I have read and understood the contribution guidelines
• I have run the pre-commit checks with ./isaaclab.sh --format
• I have updated the changelog and the corresponding version in the extension's config/extension.toml file (not applicable — CI-only change)
• I have added my name to the CONTRIBUTORS.md or my name already exists there

🤖 Generated with Claude Code

[greptile-apps]

Greptile Summary

Adds docs.omniverse.nvidia.com to the lychee link-checker's --exclude list in the CI workflow, matching the pattern already used for docs.isaacsim.omniverse.nvidia.com and other domains that block automated crawlers with 403 responses.

• Single-line addition to .github/workflows/check-links.yml, inserted between the two existing isaacsim.omniverse / download.isaacsim.omniverse entries in a logically consistent position.
• No logic, configuration, or documentation is changed; the fix is purely additive to the exclusion list.

Confidence Score: 5/5

Safe to merge — the change is a single additive line to a CI exclusion list with no effect on source code, tests, or documentation.

The edit adds one regex pattern to the lychee --exclude list, following the exact same escaping and placement convention used by the existing sibling entries. It cannot break anything in the repo; at worst it silently skips a link that was previously checked, which is the intended outcome here given the domain's 403 response to the crawler.

No files require special attention.

Important Files Changed

Filename	Overview
.github/workflows/check-links.yml	Adds docs.omniverse.nvidia.com to the lychee --exclude list; placement and regex escaping match existing sibling entries.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[CI: Check for Broken Links] --> B[lychee crawls *.md / *.rst / *.html]
    B --> C{URL in --exclude list?}
    C -- Yes --> D[Skip URL ✓]
    C -- No --> E[HTTP request]
    E --> F{Status Code}
    F -- 200-308, 429 --> G[Pass ✓]
    F -- 403, 5xx, timeout --> H[Fail ✗]
    D2[docs.omniverse.nvidia.com now returns 403 to crawler] -.->|added to exclude list| C

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flowchart TD
    A[CI: Check for Broken Links] --> B[lychee crawls *.md / *.rst / *.html]
    B --> C{URL in --exclude list?}
    C -- Yes --> D[Skip URL ✓]
    C -- No --> E[HTTP request]
    E --> F{Status Code}
    F -- 200-308, 429 --> G[Pass ✓]
    F -- 403, 5xx, timeout --> H[Fail ✗]
    D2[docs.omniverse.nvidia.com now returns 403 to crawler] -.->|added to exclude list| C

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_{Reviews (1): Last reviewed commit: "Exclude docs.omniverse.nvidia.com from l..." | Re-trigger Greptile}