Update conan_ci.yml

Author: dreamer-coding

.github/workflows/conan_ci.yml

@@ -1,6 +1,8 @@
 name: Conan CI
 
 on:
+  schedule:
+    - cron: '15 21 * * *'
   push:
     branches:
       - main
@@ -21,7 +23,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          python-version: "3.11"
 
       - name: Cache pip
         uses: actions/cache@v3