C#: Execute standalone_dependencies_nuget on all machines.

Author: michaelnebel

csharp/ql/integration-tests/posix/standalone_dependencies_nuget/test.py

@@ -2,6 +2,6 @@
 from ..conftest import _supports_mono_nuget
 
 
-@pytest.mark.only_if(_supports_mono_nuget())
+# @pytest.mark.only_if(_supports_mono_nuget())
 def test(codeql, csharp):
     codeql.database.create(build_mode="none")