chore(deps): update dependency mypy to v1.13.0 (#463)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [mypy](https://www.mypy-lang.org/)
([source](https://redirect.github.com/python/mypy),
[changelog](https://mypy-lang.blogspot.com/)) | `==1.12.1` -> `==1.13.0`
|
[![age](https://developer.mend.io/api/mc/badges/age/pypi/mypy/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/mypy/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/mypy/1.12.1/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/mypy/1.12.1/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

###
[`v1.13.0`](https://redirect.github.com/python/mypy/compare/v1.12.1...v1.13.0)

[Compare
Source](https://redirect.github.com/python/mypy/compare/v1.12.1...v1.13.0)

</details>

---

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pyproject.toml

@@ -49,7 +49,7 @@ tests = [
 ]
 dev = [
     "gto[tests]",
-    "mypy==1.12.1",
+    "mypy==1.13.0",
     "pylint==3.3.1",
     "types-PyYAML",
     "types-filelock",