ci(tools): update kentaro-m/auto-assign-action action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
kentaro-m/auto-assign-action	action	major	v1.2.6 -> v2.0.0

---

Release Notes

kentaro-m/auto-assign-action (kentaro-m/auto-assign-action)

### [`v2.0.0`](https://togithub.com/kentaro-m/auto-assign-action/releases/tag/v2.0.0) [Compare Source](https://togithub.com/kentaro-m/auto-assign-action/compare/v1.2.6...v2.0.0) #### What's Changed - chore(deps): update dependency prettier to v3.2.4 by [@​renovate](https://togithub.com/renovate) in [https://github.com/kentaro-m/auto-assign-action/pull/166](https://togithub.com/kentaro-m/auto-assign-action/pull/166) - fix: update Node.js version and action configuration by [@​kentaro-m](https://togithub.com/kentaro-m) in [https://github.com/kentaro-m/auto-assign-action/pull/170](https://togithub.com/kentaro-m/auto-assign-action/pull/170) - fix: update [@​types/node](https://togithub.com/types/node) version to 20.11.13 by [@​kentaro-m](https://togithub.com/kentaro-m) in [https://github.com/kentaro-m/auto-assign-action/pull/171](https://togithub.com/kentaro-m/auto-assign-action/pull/171) **Full Changelog**: https://github.com/kentaro-m/auto-assign-action/compare/v1.2.6...v2.0.0

---

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.

---

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

---

This PR has been generated by Mend Renovate. View repository job log here.