ci(github): fix workflow assign-reviewer.yml

Author: remarkablemark

.github/workflows/assign-reviewer.yml

@@ -4,11 +4,15 @@ on: pull_request_target
 jobs:
   assign-reviewer:
     runs-on: ubuntu-latest
+
     steps:
-    - name: Assign reviewer
-      if: >
-        startsWith(github.event.pull_request.title, 'build(deps-dev): bump ') == false &&
-        contains(github.event.action, 'opened')
-      run: gh pr edit ${{ github.event.number }} --add-assignee ${{ github.event.pull_request.user.login }} --add-reviewer remarkablemark
-      env:
-        GITHUB_TOKEN: ${{ github.token }}
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Assign reviewer
+        if: >
+          startsWith(github.event.pull_request.title, 'build(deps-dev): bump ') == false &&
+          contains(github.event.action, 'opened')
+        run: gh pr edit ${{ github.event.number }} --add-assignee ${{ github.event.pull_request.user.login }} --add-reviewer remarkablemark
+        env:
+          GITHUB_TOKEN: ${{ github.token }}