ci: daily tests and order python from new to old

- more recent version first

.github/workflows/ci.yml

@@ -4,14 +4,14 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '*/15 * * * *'
+    - cron: '47 3 * * *'
 
 jobs:
   build:
 
     strategy:
       matrix:
-        python-version: ["3.7", "pypy-3.7", "3.8", "pypy-3.8", "3.9", "pypy-3.9", "3.10", "3.11", "3.x"]
+        python-version: ["3.x", "3.11", "3.10", "3.9", "pypy-3.9", "3.8", "pypy-3.8", "3.7", "pypy-3.7"]
         platform: [ubuntu-latest, macos-latest, windows-latest]
         exclude:
           - platform: windows-latest