dev: update scheduled stale issue & pull request check

Author: practicalli-johnny

.github/workflows/scheduled-stale-check.yaml

@@ -12,7 +12,7 @@ name: 'Scheduled stale check'
 on:
   workflow_dispatch:
   schedule:
-    - cron: '30 1 * * *'
+    - cron: "0 1 1 * *" # at 01:00 on first day of month
 
 jobs:
   stale:

CHANGELOG.md

@@ -7,6 +7,7 @@
 - readme: star history for project on github
 - mkdocs: CSS for round corners on buttons, etc.
 - reference: creative coding overview
+- dev: add scheduled stale issue & pull request check
 
 ## Changed
 - clojure-cli: enhance built-in commands description