Update actions/github-script action to v9 (#28271)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/github-script](https://redirect.github.com/actions/github-script)
| action | major | `v8` → `v9` |

---

### Release Notes

<details>
<summary>actions/github-script (actions/github-script)</summary>

###
[`v9.0.0`](https://redirect.github.com/actions/github-script/releases/tag/v9.0.0)

[Compare
Source](https://redirect.github.com/actions/github-script/compare/v9.0.0...v9.0.0)

**New features:**

- **`getOctokit` factory function** — Available directly in the script
context. Create additional authenticated Octokit clients with different
tokens for multi-token workflows, GitHub App tokens, and cross-org
access. See [Creating additional clients with
`getOctokit`](https://redirect.github.com/actions/github-script#creating-additional-clients-with-getoctokit)
for details and examples.
- **Orchestration ID in user-agent** — The `ACTIONS_ORCHESTRATION_ID`
environment variable is automatically appended to the user-agent string
for request tracing.

**Breaking changes:**

- **`require('@&#8203;actions/github')` no longer works in scripts.**
The upgrade to `@actions/github` v9 (ESM-only) means
`require('@&#8203;actions/github')` will fail at runtime. If you
previously used patterns like `const { getOctokit } =
require('@&#8203;actions/github')` to create secondary clients, use the
new injected `getOctokit` function instead — it's available directly in
the script context with no imports needed.
- `getOctokit` is now an injected function parameter. Scripts that
declare `const getOctokit = ...` or `let getOctokit = ...` will get a
`SyntaxError` because JavaScript does not allow `const`/`let`
redeclaration of function parameters. Use the injected `getOctokit`
directly, or use `var getOctokit = ...` if you need to redeclare it.
- If your script accesses other `@actions/github` internals beyond the
standard `github`/`octokit` client, you may need to update those
references for v9 compatibility.

##### What's Changed

- Add ACTIONS\_ORCHESTRATION\_ID to user-agent string by
[@&#8203;Copilot](https://redirect.github.com/Copilot) in
[#&#8203;695](https://redirect.github.com/actions/github-script/pull/695)
- ci: use deployment: false for integration test environments by
[@&#8203;salmanmkc](https://redirect.github.com/salmanmkc) in
[#&#8203;712](https://redirect.github.com/actions/github-script/pull/712)
- feat!: add getOctokit to script context, upgrade
[@&#8203;actions/github](https://redirect.github.com/actions/github) v9,
[@&#8203;octokit/core](https://redirect.github.com/octokit/core) v7, and
related packages by
[@&#8203;salmanmkc](https://redirect.github.com/salmanmkc) in
[#&#8203;700](https://redirect.github.com/actions/github-script/pull/700)

##### New Contributors

- [@&#8203;Copilot](https://redirect.github.com/Copilot) made their
first contribution in
[#&#8203;695](https://redirect.github.com/actions/github-script/pull/695)

**Full Changelog**:
<https://github.com/actions/github-script/compare/v8.0.0...v9.0.0>

###
[`v9`](https://redirect.github.com/actions/github-script/compare/v8.0.0...v9.0.0)

[Compare
Source](https://redirect.github.com/actions/github-script/compare/v8.0.0...v9.0.0)

</details>

---

### Configuration

📅 **Schedule**: (in timezone Etc/UTC)

- Branch creation
  - Only on Sunday and Saturday (`* * * * 0,6`)
- Between 11:00 PM and 11:59 PM, Monday through Friday (`* 23 * * 1-5`)
- Between 12:00 AM and 04:59 AM, Monday through Saturday (`* 0-4 * *
1-6`)
- Automerge
  - Only on Sunday and Saturday (`* * * * 0,6`)
- Between 11:00 PM and 11:59 PM, Monday through Friday (`* 23 * * 1-5`)
- Between 12:00 AM and 04:59 AM, Monday through Saturday (`* 0-4 * *
1-6`)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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