Update kentaro-m/auto-assign-action action to v2 (#36)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/yaml-lint.yml

@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: add approvers
-        uses: kentaro-m/auto-assign-action@v1.2.6
+        uses: kentaro-m/auto-assign-action@v2.0.0
 
       - name: label reviewers-set
         uses: andymckay/labeler@master