Add cond activate coast to the generate conda metadata

Author: soutobias

.github/workflows/build_package.yml

@@ -49,5 +49,9 @@ jobs:
           python -m pip install dist/coast-*.tar.gz
       - name: Generate Conda Metadata
         run: |
+          CONDA_BASE=$(conda info --base)
+          source "${CONDA_BASE}/etc/profile.d/conda.sh"
+          conda init
+          conda activate coast
           ./generate_conda_meta.sh
           cat conda/meta.yaml