[setup] Properly declare and test "ci build" subcommand

conda/meta.yaml

@@ -65,6 +65,7 @@ test:
     - bdt getpath --help
     - bdt caupdate --help
     - bdt ci --help
+    - bdt ci build --help
     - bdt ci deploy --help
     - bdt ci pypi --help
     - sphinx-build -aEW ${PREFIX}/share/doc/{{ name }}/doc {{ project_dir }}/sphinx

setup.py

@@ -55,6 +55,7 @@ setup(
           ],
 
         'bdt.ci.cli': [
+          'build = bob.devtools.scripts.ci:build',
           'deploy = bob.devtools.scripts.ci:deploy',
           'pypi = bob.devtools.scripts.ci:pypi',
           ],