Force a python version compatible with conda version

.github/workflows/conda_build.yml

@@ -28,15 +28,22 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Setup Mambaforge
+      - name: Setup Miniforge
         uses: conda-incubator/setup-miniconda@v3
         with:
             miniforge-variant: Miniforge3
             miniforge-version: latest
             activate-environment: bc_builds
-            conda-version: "23.5.2"
+            #conda-version: "23.5.2"
             use-mamba: true
 
+      - name: Ensure Python 3.11 is installed in base environment
+        run: mamba install --name base python=3.11
+
+      - name: Update Conda and Mamba
+        run: |
+          mamba install --name base conda=23.5.2
+          
       - name: Update beyondcell environment
         run: mamba update -n bc_builds -f helpers/mambabuild.yml