Update ci.yml

Author: DavideOberto

.github/workflows/ci.yml

@@ -7,13 +7,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
 
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
-        python-version: 3.8
+        python-version: 3.11
 
     - name: Setup Conda
       uses: conda-incubator/setup-miniconda@v3