C#: Fix the dotnet pack integration test.

Author: michaelnebel

csharp/ql/integration-tests/all-platforms/dotnet_pack/test.py

@@ -2,10 +2,10 @@
 from create_database_utils import *
 from diagnostics_test_utils import *
 
-run_codeql_database_create(['dotnet pack'], db=None, lang="csharp")
+run_codeql_database_create(['dotnet pack -o nugetpackage'], db=None, lang="csharp")
 
 ## Check that the NuGet package is created.
-if not os.path.isfile("bin/Debug/dotnet_pack.1.0.0.nupkg"):
+if not os.path.isfile("nugetpackage/dotnet_pack.1.0.0.nupkg"):
     raise Exception("The NuGet package was not created.")
 
 check_diagnostics()