Install tool in right env

Author: sverhoeven

.github/workflows/recipes.yml

@@ -19,7 +19,10 @@ jobs:
           key: ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('data/recipe_example.yml') }}
       - uses: goanpeca/setup-miniconda@v1
       - name: Install esmvaltool
-        run: conda install -y -c esmvalgroup -c conda-forge esmvaltool-python
+        run: conda install -n test -y -c esmvalgroup -c conda-forge esmvaltool-python
+      - name: Debug
+        run: |
+          ls -R $CONDA/envs
       - name: Setup config
         run: |
           $CONDA/envs/test/bin/esmvaltool config get_config_user