Add auto-activate base

Author: oleksandr-pavlyk

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

@@ -135,6 +135,7 @@ jobs:
       - uses: conda-incubator/setup-miniconda@v3
         with:
           miniforge-version: latest
+          auto-activate-base: true
           conda-build-version: "*"
           activate-environment: build
           python-version: ${{ matrix.python }}