actionlint周りの追加

[tarappo]

TODO

• actionlintを追加

[Copilot]

Pull Request Overview

This PR adds a new GitHub Actions workflow to lint GitHub Actions workflows using actionlint, along with an additional linting step using pinact-actions.

• Introduces a new workflow file (.github/workflows/actionlint.yml).
• Configures concurrency settings and permissions for the workflow.
• Uses pinned commit hashes for action versions to ensure reproducibility.

Comments suppressed due to low confidence (2)

.github/workflows/actionlint.yml:13

• Using 'write-all' permissions may be overly broad for this workflow. Consider limiting permissions to only what's necessary.

permissions: write-all

.github/workflows/actionlint.yml:21

• [nitpick] Pinning the checkout action to a commit hash can delay receiving important security updates. Consider using a stable release tag like '@v4' to benefit from automatic fixes.

uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

[Copilot]

Pull Request Overview

This PR adds a new GitHub Actions workflow for actionlint and updates existing workflows to use pinned commit versions of checkout and cache actions.

• Introduces .github/workflows/actionlint.yml to run linting on workflow files.
• Updates actions/checkout and actions/cache versions in pull_request and merge workflows.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
.github/workflows/actionlint.yml	Adds linting workflow with actionlint setup.
.github/workflows/pull_request.yml	Updates checkout and cache actions to pinned commits.
.github/workflows/merge.yml	Updates checkout and cache actions to pinned commits.