CODEOWNERS のディレクトリ修正 & assign.yml 配置

Author: srmrych

.github/workflows/CODEOWNERS .github/CODEOWNERS.github/workflows/CODEOWNERS renamed to .github/CODEOWNERS

@@ -0,0 +1,21 @@
+name: 'assign'
+
+on:
+  pull_request:
+    types:
+      - opened
+      - ready_for_review
+
+jobs:
+  Assignees:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v6
+        with:
+          script: |
+            github.rest.issues.addAssignees({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              assignees: `${{ github.actor }}`
+            });