chore(deps): update pre-commit hook asottile/pyupgrade to v3.15.1 (#2958)

[![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 | patch | `v3.15.0` -> `v3.15.1` |

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>

###
[`v3.15.1`](https://togithub.com/asottile/pyupgrade/compare/v3.15.0...v3.15.1)

[Compare
Source](https://togithub.com/asottile/pyupgrade/compare/v3.15.0...v3.15.1)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **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/libretime/libretime).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yMDAuMCIsInVwZGF0ZWRJblZlciI6IjM3LjIwMC4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

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

.pre-commit-config.yaml

@@ -36,7 +36,7 @@ repos:
         exclude: ^(legacy/public(?!/js/airtime)|CHANGELOG.md$|.github/release-please-manifest.json)
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.15.0
+    rev: v3.15.1
     hooks:
       - id: pyupgrade
         args: [--py38-plus]