Update dependency countries-and-timezones to v3.9.0 (#28166)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[countries-and-timezones](https://redirect.github.com/manuelmhtr/countries-and-timezones)
| [`3.8.0` →
`3.9.0`](https://renovatebot.com/diffs/npm/countries-and-timezones/3.8.0/3.9.0)
|
![age](https://developer.mend.io/api/mc/badges/age/npm/countries-and-timezones/3.9.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/countries-and-timezones/3.8.0/3.9.0?slim=true)
|

---

### Release Notes

<details>
<summary>manuelmhtr/countries-and-timezones
(countries-and-timezones)</summary>

###
[`v3.9.0`](https://redirect.github.com/manuelmhtr/countries-and-timezones/blob/HEAD/CHANGELOG.md#390---2026-04-12)

[Compare
Source](https://redirect.github.com/manuelmhtr/countries-and-timezones/compare/v3.8.0...v3.9.0)

##### Changed

- Updated with 2026a IANA Time Zone Database.
- Added `Heard Island and McDonald Islands` country
([#&#8203;155](https://redirect.github.com/manuelmhtr/countries-and-timezones/issues/155)
by [Florian Veys](https://redirect.github.com/FlorianVeys))

</details>

---

### Configuration

📅 **Schedule**: (in timezone Etc/UTC)

- Branch creation
  - Only on Sunday and Saturday (`* * * * 0,6`)
  - Between 12:00 AM and 12:59 PM, only on Monday (`* 0-12 * * 1`)
- Between 09:00 PM and 11:59 PM, Monday through Friday (`* 21-23 * *
1-5`)
- Between 12:00 AM and 04:59 AM, Tuesday through Saturday (`* 0-4 * *
2-6`)
- Automerge
  - Only on Sunday and Saturday (`* * * * 0,6`)
  - Between 12:00 AM and 12:59 PM, only on Monday (`* 0-12 * * 1`)
- Between 10:00 PM and 11:59 PM, Monday through Friday (`* 22-23 * *
1-5`)
- Between 12:00 AM and 04:59 AM, Tuesday through Saturday (`* 0-4 * *
2-6`)

🚦 **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.

---

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---

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