try to fix conda

.github/workflows/ci.yml

@@ -4,17 +4,19 @@ on: [pull_request]
 
 jobs:
   unit-tests:
+    defaults:
+      run:
+        shell: bash -l {0}
     runs-on: ubuntu-20.04
     strategy:
       matrix:
         python-version: ["3.10"]
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-        cache: 'pip'
+      - uses: actions/checkout@v4
+      - uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: anaconda-client-env
+          environment-file: etc/example-environment-caching.yml
     - name: Install dependencies
       run: |
         conda create -n rcareworld python=3.10