test mirgecom examples in CI (#221)

* also test mirgecom examples in CI

* reorder

* also test production

* remove production test (won't work without emirge)

* only test examples for mirgecom

.github/workflows/ci.yml

@@ -130,6 +130,14 @@ jobs:
                     sed -i "/mpi4py/ d" requirements.txt
                 fi
                 build_py_project_in_conda_env
-                test_py_project
+
+                if test "$DOWNSTREAM_PROJECT" = "mirgecom"; then
+                    # Test main branch
+                    # Only test examples, not pytest tests, as those take too much time.
+                    examples/run_examples.sh ./examples
+                else
+                    test_py_project
+                fi
+
 
 # vim: sw=4