Update dependency mypy to v0.971

This MR contains the following updates:

Package	Update	Change
mypy (source, changelog)	minor	==0.960 -> ==0.971

---

Release Notes

python/mypy

v0.971

Compare Source

v0.961

Compare Source

---

Configuration

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

🚦 Automerge: Enabled.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.