chore(deps): update dependency @actions/github to v9

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@actions/github (source)	6.0.0 → 9.1.1

---

Release Notes

actions/toolkit (@​actions/github)

v9.1.1

• Bump undici from 6.23.0 to 6.24.0 #​2346

v9.1.0

• Append actions_orchestration_id to user-agent when the ACTIONS_ORCHESTRATION_ID environment variable is set #​2364

v9.0.0

• Breaking change: Package is now ESM-only
  • CommonJS consumers must use dynamic import() instead of require()
  • Example: const { getOctokit, context } = await import('@​actions/github')
• Fix TypeScript compilation by migrating to ESM, enabling proper imports from @octokit/core/types

v8.0.1

• Update undici to 6.23.0
• Update @actions/http-client to 3.0.2

v8.0.0

• Update @​octokit dependencies
  • @octokit/core ^7.0.6
  • @octokit/plugin-paginate-rest ^14.0.0
  • @octokit/plugin-rest-endpoint-methods ^17.0.0
  • @octokit/request ^10.0.7
  • @octokit/request-error ^7.1.0
• Breaking change: Minimum Node.js version is now 20 (previously 18)

v7.0.0

• Update to v3.0.1 of @actions/http-client

v6.0.1

• Dependency updates #​2043
• Add context.runAttempt #​1588

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[sentry]

Bug: The build tool @vercel/ncc cannot bundle the new ESM-only @actions/github dependency, creating a broken artifact that will cause the action to crash at runtime.
_{Severity: CRITICAL}

Suggested Fix

Update the build process to correctly handle ESM modules. This can be achieved by either upgrading @vercel/ncc to a version with proper ESM support or replacing it with an alternative bundler like esbuild or webpack. Alternatively, revert the @actions/github dependency to a CommonJS-compatible version until the build system is updated.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent.
Verify if this is a real issue. If it is, propose a fix; if not, explain why it's not
valid.

Location: package.json#L23

Potential issue: The project's build tool, `@vercel/ncc@0.38.3`, does not correctly
handle the newly introduced ESM-only dependency `@actions/github@9.0.0`. While the build
command (`npm run build`) completes without error, it produces a non-functional
`dist/index.js` file that is missing the core application logic from `src/index.js`.
When the GitHub Action is triggered, it will attempt to execute this broken bundle,
resulting in a runtime crash and complete failure of the action.

_{Did we get this right? 👍 / 👎 to inform future reviews.}