chore(ci): upgrade to non deprecated action for assign pr (WPB-8645)

Author: yamilmedina

.github/workflows/pr-author-assigner.yml

@@ -1,12 +1,13 @@
-name: Auto assign author to PR
+name: "Auto Author Assign"
 on:
-    pull_request:
-        types: [ opened ]
+  pull_request:
+    types: [ opened, reopened ]
+
+permissions:
+  pull-requests: write
 
 jobs:
-    assign-author:
-        runs-on: ubuntu-latest
-        steps:
-            -   uses: samspills/[email protected]
-                with:
-                    repo-token: '${{ secrets.GITHUB_TOKEN }}'
+  assign-author:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: toshimaru/[email protected]