use python 3.11

Author: plamen-neykov

.github/workflows/python-package-conda.yml

@@ -16,10 +16,10 @@ jobs:
         with:
           fetch-depth: 0  # Needed for setuptools_scm to determine version from git tags
 
-      - name: Set up Python 3.12
+      - name: Set up Python 3.11
         uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: '3.11'
 
       - name: Install build dependencies
         run: |