test(indium): run accepted address shadow regression in CI

.github/workflows/source-check.yml

@@ -16,6 +16,10 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.12'
+      - name: Require C++ regression compiler
+        run: |
+          command -v c++
+          c++ --version
       - run: python scripts/validate.py
       - run: python tools/riot-input-offline-check.py
       - run: python tools/riot-launcher-offline-check.py
@@ -28,5 +32,6 @@ jobs:
       - run: python -m unittest discover -s tests -p 'test_urlsession_runner.py'
       - run: python -m unittest discover -s tests -p 'test_system_profiler.py'
       - run: python -m unittest discover -s tests -p 'test_metal_device_info.py'
+      - run: python -m unittest discover -s tests -p 'test_indium_address_shadow.py' -v
       - run: python -m unittest discover -s tests -p 'test_exec_guest.py'
       - run: python -m unittest discover -s tests -p 'test_close_league_client_in_game.py'