chore(deps): update actions/checkout action to v5

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [requests](https://requests.readthedocs.io) ([source](https://github.com/psf/requests), [changelog](https://github.com/psf/requests/blob/master/HISTORY.md)) | `==2.32.4` -> `==2.32.5` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/requests/2.32.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/requests/2.32.4/2.32.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>psf/requests (requests)</summary>

### [`v2.32.5`](https://github.com/psf/requests/blob/HEAD/HISTORY.md#2325-2025-08-18)

[Compare Source](https://github.com/psf/requests/compare/v2.32.4...v2.32.5)

**Bugfixes**

- The SSLContext caching feature originally introduced in 2.32.0 has created
  a new class of issues in Requests that have had negative impact across a number
  of use cases. The Requests team has decided to revert this feature as long term
  maintenance of it is proving to be unsustainable in its current iteration.

**Deprecations**

- Added support for Python 3.14.
- Dropped support for Python 3.8 following its end of support.

</details>

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### Configuration

📅 **Schedule**: 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 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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Reviewed-on: #149
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Co-committed-by: Renovate [BOT] <renovate-bot@git.tainton.uk>

.ARCHIVE/requirements.txt

@@ -7,7 +7,7 @@ idna==3.10
 itsdangerous==2.2.0
 Jinja2==3.1.6
 MarkupSafe==3.0.2
-requests==2.32.4
+requests==2.32.5
 urllib3==2.5.0
 Werkzeug==3.1.3
 WTForms==3.2.1