assign every new issue to copilot by default

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

.github/workflows/copilot-autofix.yml

@@ -0,0 +1,20 @@
+name: Copilot Autofix on New Issue
+
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  assign-to-copilot:
+    # Only trigger on issues with the 'copilot-autofix' label
+    if: contains(github.event.issue.labels.*.name, 'copilot-autofix')
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Assign issue to Copilot
+        run: |
+          gh issue edit "$ISSUE" --add-assignee copilot
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE: ${{ github.event.issue.number }}