Lockfile must be named conda-lock.yml

Otherwise it's not recognized by micromamba

Author: maresb

.github/workflows/ci.yml

@@ -35,10 +35,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+      - name: Rename lockfile
+        run: |
+          mv conda/conda-lock-${{ matrix.python-version }}.yaml conda/conda-lock.yml
       - uses: mamba-org/setup-micromamba@v1
         with:
           micromamba-version: 1.5.5-0
-          environment-file: conda/conda-lock-${{ matrix.python-version }}.yaml
+          environment-file: conda/conda-lock.yml
           environment-name: causalpy-test-${{ matrix.python-version }}
           cache-environment: true
       - name: Run doctests