Rename environment file for conda-lock

Otherwise it thinks the lockfile is a unified lockfile instead of
an environment specification file

Author: maresb

.github/workflows/update-lockfile.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Install Conda environment with Micromamba
       uses: mamba-org/setup-micromamba@v1
       with:
-        environment-file: conda/environment-conda-lock.yaml
+        environment-file: conda/environment-conda-locker.yaml
         environment-name: conda-lock-env
         cache-environment: true