deps: update pre-commit hook asottile/pyupgrade to v3.15.0 (#351)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [asottile/pyupgrade](https://togithub.com/asottile/pyupgrade) |
repository | minor | `v3.14.0` -> `v3.15.0` |

---

### ⚠ Dependency Lookup Warnings ⚠

Warnings were logged while processing this repo. Please check the
Dependency Dashboard for more information.

Note: The `pre-commit` manager in Renovate is not supported by the
`pre-commit` maintainers or community. Please do not report any problems
there, instead [create a Discussion in the Renovate
repository](https://togithub.com/renovatebot/renovate/discussions/new)
if you have any questions.

---

### Release Notes

<details>
<summary>asottile/pyupgrade (asottile/pyupgrade)</summary>

###
[`v3.15.0`](https://togithub.com/asottile/pyupgrade/compare/v3.14.0...v3.15.0)

[Compare
Source](https://togithub.com/asottile/pyupgrade/compare/v3.14.0...v3.15.0)

</details>

---

### 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 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

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/ansible-collections/hetzner.hcloud).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4wLjMiLCJ1cGRhdGVkSW5WZXIiOiIzNy4wLjMiLCJ0YXJnZXRCcmFuY2giOiJtYWluIn0=-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -27,7 +27,7 @@ repos:
         files: \.(md|ya?ml)$
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.14.0
+    rev: v3.15.0
     hooks:
       - id: pyupgrade
         args: [--py38-plus]