feat(workflows): add auto-assign workflow for PR authors

Signed-off-by: Felipe Sayão Lobato Abreu <github@mentordosnerds.com>

Author: coisa

.github/workflows/auto-assign.yml

@@ -0,0 +1,21 @@
+name: Auto assign PR author
+
+on:
+  issues:
+    types: [ opened, reopened ]
+  pull_request_target:
+    types: [ opened, reopened ]
+  workflow_call:
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  assign-author:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Auto assign PR author
+        uses: toshimaru/auto-author-assign@v3.0.1
+        with:
+          repo-token: ${{ github.token }}

resources/github-actions/auto-assign.yml

@@ -0,0 +1,14 @@
+name: Auto assign
+
+on:
+  pull_request_target:
+    types: [opened, reopened]
+  issues:
+    types: [opened, reopened]
+
+jobs:
+  auto-assign:
+    permissions:
+      issues: write
+      pull-requests: write
+    uses: php-fast-forward/dev-tools/.github/workflows/auto-assign.yml@main