Update kentaro-m/auto-assign-action action to v1.2.4 (#833)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[kentaro-m/auto-assign-action](https://github.com/kentaro-m/auto-assign-action)
| action | patch | `v1.2.3` -> `v1.2.4` |

---

### Release Notes

<details>
<summary>kentaro-m/auto-assign-action</summary>

###
[`v1.2.4`](https://github.com/kentaro-m/auto-assign-action/releases/v1.2.4)

[Compare
Source](https://github.com/kentaro-m/auto-assign-action/compare/v1.2.3...v1.2.4)

#### What's Changed

- chore(deps): update dependency typescript to v4 by
[@&#8203;renovate](https://github.com/renovate) in
[https://github.com/kentaro-m/auto-assign-action/pull/92](https://github.com/kentaro-m/auto-assign-action/pull/92)
- chore: upgrade to node 16 by
[@&#8203;benjlevesque](https://github.com/benjlevesque) in
[https://github.com/kentaro-m/auto-assign-action/pull/98](https://github.com/kentaro-m/auto-assign-action/pull/98)

#### New Contributors

- [@&#8203;benjlevesque](https://github.com/benjlevesque) made their
first contribution in
[https://github.com/kentaro-m/auto-assign-action/pull/98](https://github.com/kentaro-m/auto-assign-action/pull/98)

**Full Changelog**:
kentaro-m/auto-assign-action@v1.2.3...v1.2.4

</details>

---

### Configuration

📅 **Schedule**: 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, click
this checkbox.

---

This PR has been generated by [Renovate
Bot](https://github.com/renovatebot/renovate).

.github/workflows/assign-prs.yml

@@ -8,6 +8,6 @@ jobs:
     name: Assign
     runs-on: ubuntu-latest
     steps:
-      - uses: kentaro-m/auto-assign-action@v1.2.3
+      - uses: kentaro-m/auto-assign-action@v1.2.4
         with:
           repo-token: ${{ secrets.GH_TOKEN }}