chore(deps): update aws-actions/configure-aws-credentials action to v6 (#252)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[aws-actions/configure-aws-credentials](https://redirect.github.com/aws-actions/configure-aws-credentials)
| action | major | `v4` → `v6` |

---

### Release Notes

<details>
<summary>aws-actions/configure-aws-credentials
(aws-actions/configure-aws-credentials)</summary>

###
[`v6`](https://redirect.github.com/aws-actions/configure-aws-credentials/compare/v5...v6)

[Compare
Source](https://redirect.github.com/aws-actions/configure-aws-credentials/compare/v5...v6)

###
[`v5`](https://redirect.github.com/aws-actions/configure-aws-credentials/compare/v4...v5)

[Compare
Source](https://redirect.github.com/aws-actions/configure-aws-credentials/compare/v4...v5)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 3am on the first day of the
month" (UTC), 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.

---

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

---

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