ci: pin third-party actions (ninja-i18n, action-discord) to full commit SHAs

[kobihikri]

What

Pin the two third-party actions currently referenced by mutable tags to their current commit SHA (tag
kept in a trailing comment):

Action	Pinned to	Where
opral/ninja-i18n-action@main	415e999…	ninja_i18n.yml
Ilshidur/action-discord@master	d259407…	translation_notify.yml

Why

@main/@master are moving references — whatever they point to at run time runs in the job.

• ninja_i18n.yml runs on pull_request_target and passes GITHUB_TOKEN to the action. pull_request_target
  runs with the base repository's token even for pull requests from forks, so a mutable third-party
  ref here is the most sensitive one to remove.
• translation_notify.yml passes DISCORD_WEBHOOK to action-discord@master.

If either action's default branch were moved (compromise or an accidental change), the new code would
run with those credentials — the class of issue behind the 2025 tj-actions/changed-files incident.

Scope / safety

• Behaviour unchanged — each SHA is the current tip of that action's default branch.
• Only third-party actions are touched; actions/* refs are left as-is. Renovate/Dependabot can still
  bump a SHA pin (the tag comment keeps it readable). Signed-off.

Per GitHub's guidance to pin actions to a full-length commit SHA.

_{AI-assisted; I verified the workflows, the token/secret exposure, and the pinned SHAs myself.}

Summary by Sourcery

Pin third-party GitHub Actions used in CI workflows to specific commit SHAs for improved security and predictability.

CI:

• Update ninja_i18n workflow to reference opral/ninja-i18n-action by full commit SHA instead of the moving main tag.
• Update translation_notify workflow to reference Ilshidur/action-discord by full commit SHA instead of the moving master tag.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Pins two third-party GitHub Actions in CI workflows from mutable branch tags to specific commit SHAs, preserving behavior while hardening credential exposure risk.

File-Level Changes

Change	Details	Files
Pin the ninja-i18n GitHub Action to a specific commit SHA instead of the mutable main branch reference.	Replace opral/ninja-i18n-action@main with opral/ninja-i18n-action@415e999 in the workflow job. Add a trailing comment indicating the original main tag for readability and future maintenance.	.github/workflows/ninja_i18n.yml
Pin the Discord notification GitHub Action to a specific commit SHA instead of the mutable master branch reference.	Replace Ilshidur/action-discord@master with Ilshidur/action-discord@d259407 in the workflow job. Add a trailing comment indicating the original master tag for readability and future maintenance.	.github/workflows/translation_notify.yml

---

Tips and commands

Interacting with Sourcery

• Trigger a new review: Comment @sourcery-ai review on the pull request.
• Continue discussions: Reply directly to Sourcery's review comments.
• Generate a GitHub issue from a review comment: Ask Sourcery to create an
  issue from a review comment by replying to it. You can also reply to a
  review comment with @sourcery-ai issue to create an issue from it.
• Generate a pull request title: Write @sourcery-ai anywhere in the pull
  request title to generate a title at any time. You can also comment
  @sourcery-ai title on the pull request to (re-)generate the title at any time.
• Generate a pull request summary: Write @sourcery-ai summary anywhere in
  the pull request body to generate a PR summary at any time exactly where you
  want it. You can also comment @sourcery-ai summary on the pull request to
  (re-)generate the summary at any time.
• Generate reviewer's guide: Comment @sourcery-ai guide on the pull
  request to (re-)generate the reviewer's guide at any time.
• Resolve all Sourcery comments: Comment @sourcery-ai resolve on the
  pull request to resolve all Sourcery comments. Useful if you've already
  addressed all the comments and don't want to see them anymore.
• Dismiss all Sourcery reviews: Comment @sourcery-ai dismiss on the pull
  request to dismiss all existing Sourcery reviews. Especially useful if you
  want to start fresh with a new review - don't forget to comment
  @sourcery-ai review to trigger a new review!

Customizing Your Experience

Access your dashboard to:

• Enable or disable review features such as the Sourcery-generated pull request
  summary, the reviewer's guide, and others.
• Change the review language.
• Add, remove or edit custom review instructions.
• Adjust other review settings.

Getting Help

• Contact our support team for questions or feedback.
• Visit our documentation for detailed guides and information.
• Keep in touch with the Sourcery team by following us on X/Twitter, LinkedIn or GitHub.

[sourcery-ai]

Hey - I've reviewed your changes and they look great!

---

Sourcery is free for open source - if you like our reviews please consider sharing them ✨

• X
• Mastodon
• LinkedIn
• Facebook

_{Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.}

[CLAassistant]

All committers have signed the CLA.