add CI schedule

Author: bckohan

.github/workflows/test.yml

@@ -1,6 +1,16 @@
 name: test
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      debug:
+        description: 'Set to on, to open ssh debug session.'
+        required: true
+        default: 'off'
+  schedule:
+    - cron: '0 13 * * *'  # Runs at 6 am pacific every day
 
-on: [push, pull_request, workflow_dispatch]
 
 jobs: