Update dependency mypy to v1.12.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mypy (source, changelog)	==1.12.0 -> ==1.12.1

---

Release Notes

python/mypy (mypy)

v1.12.1

Compare Source

• Fix crash when showing partially analyzed type in error message (Ivan Levkivskyi, PR 17961)
• Fix iteration over union (when self type is involved) (Shantanu, PR 17976)
• Fix type object with type var default in union context (Jukka Lehtosalo, PR 17991)
• Revert change to os.path stubs affecting use of os.PathLike[Any] (Shantanu, PR 17995)

---

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.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.