Tweak autopilot workflow (#661)

Author: jackfirth

.github/workflows/copilot-assignment.yml .github/workflows/autopilot.yml.github/workflows/copilot-assignment.yml renamed to .github/workflows/autopilot.yml

@@ -1,9 +1,11 @@
-name: Auto-assign Issues to Copilot
+name: Autopilot
 
 on:
   workflow_dispatch:
   schedule:
-    - cron: "0 0 * * 1"
+    # 17:00 UTC on Monday, Wednesday, and Friday
+    # 17:00 UTC is (usually) 10:00 PDT
+    - cron: "0 17 * * 1,3,5"
 
 permissions:
   issues: write
@@ -16,7 +18,7 @@ jobs:
         uses: actions/checkout@v5
       - name: Assign issue to copilot
         run: |
-          issue_number=$(gh issue list --state open --label 'copilot-candidate' --search 'no:assignee' --json number --jq '.[].number' | shuf -n 1)
+          issue_number=$(gh issue list --state open --label 'autopilot-candidate' --search 'no:assignee' --json number --jq '.[].number' | shuf -n 1)
           gh issue edit $issue_number --add-assignee "@copilot"
         env:
           GH_TOKEN: ${{ secrets.AUTOPILOT_PAT }}