Fix broken sample.mps download link in server LP examples docs

[ramakrishnap-nv]

Description

The :download: link for sample.mps in cuopt-server/examples/lp-examples.rst
pointed at an external host (people.math.sc.edu) that is unreachable, breaking
the docs linkcheck build:

cuopt-server/examples/lp-examples.rst:439: [broken]
https://people.math.sc.edu/Burkardt/datasets/mps/testprob.mps

The same sample.mps already exists in the repo at
cuopt-server/examples/lp/examples/sample.mps and is shown via literalinclude
on the next line, so the download now points at that local file.

Issue

Docs linkcheck failure (external host down).

Checklist

• Testing
  • NA (docs-only; make linkcheck no longer reports this URL)
• Documentation
  • NA

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 361af442-f166-4023-8cf2-c112a7828e75

📥 Commits

Reviewing files that changed from the base of the PR and between 205bf80 and b477616.

📒 Files selected for processing (1)

• ci/utils/install_cudss.sh

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📝 Walkthrough

Walkthrough

Updates: LP CLI docs now reference a local sample MPS asset; CI helper script pins cuDSS packages to version 0.7.* and adds SPDX headers.

Changes

Documentation Update

Layer / File(s)	Summary
Sample MPS download link reference docs/cuopt/source/cuopt-server/examples/lp-examples.rst	The "A sample MPS file" download directive now points to local file lp/examples/sample.mps instead of an external URL.

CI cuDSS Installation

Layer / File(s)	Summary
Pin cuDSS packages and add SPDX headers ci/utils/install_cudss.sh	install_cudss.sh now includes SPDX headers and installs cuDSS packages pinned to 0.7.* for both RPM (dnf wildcard -cuda-<ver>-0.7.*) and DEB (apt-get libcudss-devel=0.7.*) flows.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: fixing a broken sample.mps download link in server LP examples documentation.
Description check	✅ Passed	The description is directly related to the changeset, explaining the broken external link issue and how it's being fixed by pointing to a local file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/lp-examples-broken-mps-link

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[ramakrishnap-nv]

/merge