added make dep in the test-docs job

.gitlab-ci.yml

@@ -150,7 +150,7 @@ test-docs:
   tags:
     - conda
   before_script:
-      - conda install --override-channels --channel conda-forge curl -y
+      - conda install --override-channels --channel conda-forge curl make -y
       - curl -Ls https://micro.mamba.pm/api/micromamba/linux-64/latest | tar -xvj bin/micromamba
       - export MAMBA_ROOT_PREFIX="$CI_PROJECT_DIR/.micromamba-docs"
       - eval "$(bin/micromamba shell hook --shell bash)"