feat: add summary output file input

[philippkarg]

See cpp-linter/cpp-linter#205 & cpp-linter/cpp-linter#206.

• Upgrade cpp-linter dependency to support the option
• Update lockfile

Summary by CodeRabbit

• New Features

  • Added an optional summary-output-file input to save step summary output to a file.
  • Summary output can now be written relative to the repository root when a path is provided.

• Documentation

  • Updated the action documentation to include the new input and its minimum supported version.

• Chores

  • Upgraded the bundled linter version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: a0b5c401-e0f9-4ed0-8fef-28b1ea2403ec

📥 Commits

Reviewing files that changed from the base of the PR and between 51286ac and 7a4b527.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (3)

• action.yml
• docs/action.yml
• pyproject.toml

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Walkthrough

Adds a new optional summary-output-file action input (default empty) to action.yml and passes it to cpp-linter via --summary-output-file. The input is documented in docs/action.yml with minimum-version: 2.20.0. The cpp-linter dependency is bumped from 1.12.1 to 1.13.0.

summary-output-file input

Layer / File(s)	Summary
Input declaration, CLI wiring, and dependency bump action.yml, docs/action.yml, pyproject.toml	summary-output-file input added with empty default and passed to cpp-linter as --summary-output-file=...; documented with minimum-version: 2.20.0; dependency bumped to cpp-linter==1.13.0.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• cpp-linter/cpp-linter-action#314: Also modifies the "Run cpp-linter" step in action.yml to change how CLI arguments are passed to cpp-linter.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: adding a summary output file input to the action.
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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[2bndy5]

Thanks for moving this forward!

Typically this would be done when dependabot submits a PR, but dependabot has been unreliable lately, because the CI runner sparse availability.

@shenxianpeng some of the CI jobs fail because the github.token cannot post the thread comment for a PR from a fork.

[2bndy5]

It might take a while (hours) to deploy. Lately, CI runners have been rarely available on the weekends; GitHub blames AI-related workflows and generated content for this severe drop in availability...