fix(lab): probe optional adapter image safely

tests/test_lab_v1_component_adapter_image_installer.py

@@ -19,6 +19,8 @@ def test_component_image_installer_is_exact_local_and_offline() -> None:
     assert "--security-opt no-new-privileges" in script
     assert "target=/nodedc-build-source,readonly" in script
     assert "Get-FileSha256" in script
+    assert 'docker image ls `' in script
+    assert '--filter "reference=$tag"' in script
     assert "Invoke-InstalledImageSmoke" in script
     assert "docker commit @changes $containerId $tag" in script
     assert "docker rm -f $containerId" in script