Update dependency mypy to v1.5.1 (#310)

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

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [mypy](https://www.mypy-lang.org/)
([source](https://togithub.com/python/mypy),
[changelog](https://mypy-lang.blogspot.com/)) | `==1.5.0` -> `==1.5.1` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/mypy/1.5.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/mypy/1.5.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/mypy/1.5.0/1.5.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/mypy/1.5.0/1.5.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>python/mypy (mypy)</summary>

### [`v1.5.1`](https://togithub.com/python/mypy/compare/v1.5.0...v1.5.1)

[Compare
Source](https://togithub.com/python/mypy/compare/v1.5.0...v1.5.1)

</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/allenporter/flux-local).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi40My4yIiwidXBkYXRlZEluVmVyIjoiMzYuNDMuMiIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

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

requirements.txt

@@ -3,7 +3,7 @@ aiofiles==23.2.1
 black==23.7.0
 coverage==7.3.0
 GitPython==3.1.32
-mypy==1.5.0
+mypy==1.5.1
 nest_asyncio==1.5.7
 pdoc==14.0.0
 pip==23.2.1