Add a simple smoke test

tests/tests.yml

@@ -61,6 +61,8 @@
     - pyproject_pluggy:
         dir: pyproject-rpm-macros/tests
         run: ./mocktest.sh python-pluggy
+    - import_test:
+        run: python3 -c "import setuptools"
     required_packages:
     - gcc
     - virtualenv
@@ -71,7 +73,9 @@
     - python3.10-devel
     - python3.11-devel
     - python3.12-devel
+    - python3
     - python3-devel
+    - python3-setuptools
     - python3-tox
     - mock
     - rpmdevtools