ci: Add workflow to auto-assign author on issues and PRs.

Author: nedseb

.github/workflows/auto-assign-author.yml

@@ -0,0 +1,24 @@
+name: 👤 Auto Assign Author
+
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened]
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  assign-author:
+    runs-on: ubuntu-latest
+    if: github.actor != 'dependabot[bot]'
+    steps:
+      - name: Assign author
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NUMBER: ${{ github.event.issue.number || github.event.pull_request.number }}
+          REPO: ${{ github.repository }}
+          ACTOR: ${{ github.actor }}
+        run: gh api repos/$REPO/issues/$NUMBER/assignees -f "assignees[]=$ACTOR"