Bump kentaro-m/auto-assign-action from 1.2.3 to 1.2.4 (#1135)

Bumps [kentaro-m/auto-assign-action](https://github.com/kentaro-m/auto-assign-action) from 1.2.3 to 1.2.4.
- [Release notes](https://github.com/kentaro-m/auto-assign-action/releases)
- [Commits](kentaro-m/auto-assign-action@v1.2.3...v1.2.4)

---
updated-dependencies:
- dependency-name: kentaro-m/auto-assign-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/pr.yml

@@ -14,6 +14,6 @@ jobs:
           java-version: '11'
       - name: Run with Gradle
         run: ./gradlew clean test --info
-      - uses: kentaro-m/auto-assign-action@v1.2.3
+      - uses: kentaro-m/auto-assign-action@v1.2.4
         with:
           configuration-path: ".github/auto_assign.yml"