🧪🔧 Move cron trigger to separate GHA workflow

Author: webknjaz

.github/workflows/cron.yml

@@ -0,0 +1,14 @@
+---
+
+name: Cron
+
+on:
+  schedule:
+  - cron: "0 6 * * *"  # daily at 6am
+
+jobs:
+  test:
+    if: github.repository_owner == 'pypa'  # suppress noise in forks
+    uses: ./.github/workflows/test.yml
+
+...

.github/workflows/test.yml

@@ -6,8 +6,7 @@ on:
     branches-ignore:
     - gh-readonly-queue/**  # Temporary merge queue-related GH-made branches
   pull_request:
-  schedule:
-    - cron: "0 6 * * *" # daily at 6am
+  workflow_call:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}