use setup-miniconda

.github/workflows/unittests.yml

@@ -11,10 +11,15 @@ jobs:
         with:
           submodules: recursive
 
-      - uses: actions/setup-[email protected]
+      - uses: conda-incubator/setup-miniconda@v3
         with:
+          auto-update-conda: true
           python-version: 3.9
 
+      # - uses: actions/[email protected]
+      #   with:
+      #     python-version: 3.9
+
       - name: Install dependencies
         run: |
           pip install -r requirements.txt coverage pytest pytest-cov hypothesis