Run same CI on weekly schedule

Author: smithara

.github/workflows/main.yml

@@ -5,6 +5,9 @@ on:
   pull_request:
   push:
     branches: [ staging, master ]
+  schedule:
+    # Weekly on Sunday
+    - cron: '0 0 * * 0'
 
 jobs:
   pre-commit:
@@ -18,16 +21,14 @@ jobs:
         extra_args: --hook-stage manual --all-files
 
   checks:
-    name: Check Python ${{ matrix.python-version }} on ${{ matrix.runs-on }}
+    name: Check Python ${{ matrix.python-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: ["ubuntu-24.04", "macos-14", "windows-2022"]
         python-version: ["3.10", "3.11", "3.12"]
         include:
-          - os: ubuntu-24.04
-            python-version: 3.7
           - os: ubuntu-24.04
             python-version: 3.8
           - os: ubuntu-24.04