tests: show mamba list for the user environment before/after upgrade

This can help us check if a package has been installed from PyPI via
pip, or from conda-forge or other channel via conda/mamba.

Author: consideRatio

.github/integration-test.py

@@ -167,15 +167,23 @@ def run_test(
         command = f"python3 /srv/src/bootstrap/bootstrap.py --version={upgrade_from}"
         run_command(container_name, command)
 
+        # show user environment
+        command = "/opt/tljh/user/bin/mamba list"
+        run_command(container_name, command)
+
     command = f"python3 /srv/src/bootstrap/bootstrap.py {' '.join(installer_args)}"
     run_command(container_name, command)
 
+    # show user environment (again if upgrade)
+    command = "/opt/tljh/user/bin/mamba list"
+    run_command(container_name, command)
+
     # Install pkgs from requirements in hub's pip, where
     # the bootstrap script installed the others
     command = "/opt/tljh/hub/bin/python3 -m pip install -r /srv/src/integration-tests/requirements.txt"
     run_command(container_name, command)
 
-    # show environment
+    # show hub environment
     command = "/opt/tljh/hub/bin/python3 -m pip freeze"
     run_command(container_name, command)