Install wheel in CI

Author: niklasmohrin

.github/workflows/tests.yml

@@ -55,6 +55,21 @@ jobs:
           name: wheel
           path: dist/
 
+  install_wheel:
+    name: Install wheel with system Python
+    needs: build_wheel
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+      - uses: actions/download-artifact@v4
+        with:
+          name: wheel
+      - run: pip install *.whl
+      - name: Check that "evaluation" section appears in help string
+        run: python -m evap --help | grep --fixed-strings "[evaluation]"
+
   mypy:
     runs-on: ubuntu-22.04