Add build test to downloadable artifacts

.gitlab-ci.yml

@@ -145,6 +145,25 @@ test-3.11-all:
         path: coverage.xml
   allow_failure: true
 
+build-test:
+  stage: test
+  image: python:3.10-bullseye
+
+  before_script:
+    - python -m pip install --upgrade pip
+    - python -m pip install --upgrade build
+    - python -m pip install --upgrade setuptools wheel
+
+  script:
+    - python -m build
+
+  artifacts:
+    when: always
+    name: "$CI_JOB_NAME-$CI_COMMIT_REF_SLUG"
+    paths:
+      - dist/*
+    expire_in: 1 year
+
 deploy_production:
   stage: deploy
   image: python:3.10-bullseye